Questions Asked on
September 29, 2010

  1. chem

    what test will you perform to determine when you have added sufficient NaOH solution to the reaction mixture in reaction 2

    asked by erlicia
  2. Chemistry

    To what volume should you dilute 25mL of a 12.0M H2SO4 solution to obtain a 0.170M H2S04 solution?

    asked by Candice
  3. chemistry

    Because of the porosity of the filter paper some of the CaC2O4 x H2O precipitate passes through the filter paper. Will the reported percent of the limiting reactant in the original salt mixture be reported too high or too low? explain

    asked by Yes8F
  4. Pre-algebra

    How do you simplifyan algebraic equation?

    asked by Kassandra
  5. Chemistry

    If 18.8mL of 0.800M HCL solution are needed to neutralize 5.00mL of a household ammonia solution, what is the molar concentration of the ammonia? How do I solve this? Thank you.

    asked by Erin
  6. Chemistry

    Please check if I've balance the equation correctly. C8H18 + 25/2O2 --> 8CO2 + 9H2O

    asked by Sarah
  7. Statistics

    A certain company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a battery is normally distributed, with a mean of 45 months and a standard deviation of 7 months. If the company does not want to

    asked by Toni
  8. chem

    what test will you perform to determine when you have added sufficient NaOH solution to the reaction mixture in reaction 2

    asked by erlicia
  9. chemistry

    For a TLC lab,the stationary phase is the mixture of isopropanol and ammonia or the mixture of hexane,ethyl acetate and ethanol, the stationary phase is silica gel. text some dyes and drugs. which one of the two mobile phases is the more polar? Actualy I

    asked by Leon
  10. calculus

    Find the second derivative of the volume of a cube with respect to the length of a side

    asked by Anonymous
  11. statistics

    Hey. I am having problem with stem leaf plot diagram. Heres the data I need to make steam leaf plot out of: 1.7 5.7 7.6 8.7 9.8 12.0 13.2 13.6 14.6 15.8 16.0 17.5 19.3 21.5 21.8 23.8 24.4 27.7 33 33.0 34.4 35.4 Can someone tell me how I would do that?

    asked by Someone
  12. physics

    A diver running 1.6 m/s dives out horizontally from the edge of a vertical cliff and 3.5 s later reaches the water below.How high was the cliff?How far from its base did the diver hit the water?

    asked by Kathy
  13. chem 1411

    Mg(NO3)2 + (NH4)3PO4 predict the product and balancing the equation. Use solubility rules to predict if a precipitate is formed.

    asked by jennifer
  14. science

    Does anyone have BC science 10 workbook answers (assessments)?

    asked by I need help
  15. chemistry

    how would you prepare 60.0 mL of 0.200 M HNO3 from a stock solution of 4.00 M HNO3?

    asked by Michael
  16. Psychology

    Hi , I need to write an esay intergrating the social representations approach with three attitudes, namely gender, race and poverty. Please help

    asked by Cathy
  17. chemistry

    A sample of 0.6760 g of an unknown compound containing barium ions (Ba2+) is dissolved in water and treated with an excess of Na2SO4. If the mass of the BaSO4 precipitate formed is 0.1405 g, what is the percent by mass of Ba in the original unknown

    asked by Michael
  18. chemistry

    If 30.0 mL of 0.150 M CaC12 is added to 15.0 mL of 0.100 M AgNO3, what is the mass in grams of AgC1 precipitate?

    asked by Michael
  19. Zeeland WEST

    In a car accidnet involving a sports car, skid marks as long as 290 m were left by the car as it decelearted to a complete stop. The police report cited the speed of the car before breaking as beeing in excess of 100mph 161 km/m. Suppose that i took 10

    asked by Abrahm
  20. british lit.

    mark syllables, separate feet with short vertical lines, and indicate the rhyme scheme

    asked by johnny
  21. Chemistry

    A student placed 12.0g of glucose (C6H1206) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-ml mark on the neck of the flask was reached. The flask was then shaken until

    asked by Steve
  22. brith lit.

    mark the syllables, separate the feet with short vertical lines, and indicate the rhyme scheme on the following lines: That time of year thou mayst in me behold When yellow leaves, or none, or few, do hang Upon those boughs which shake against the cold,

    asked by orlando, jr.
  23. life science

    1) outline the main problems associated with the greenhouse gases. 2) why fossil fuels referred as non renewable resources? 3) describe the strategies that could be implemented to reduce pollution and exploitation associated with fossil fuels 4) suggest

    asked by pipo mlji
  24. chm

    I need to find the mass of 0.0225 mole of NH3?

    asked by cindy
  25. Physics 1

    There are six books in a stack, and each book weighs 5 N. The coefficient of static friction between the books is 0.2. With what horizontal force must one push to start sliding the top five books off the bottom one? Help how do i do this????? a)1 N b)5 N

    asked by Aisumi
  26. Physics 1

    A rock is thrown straight upward with an initial velocity of 9.6 m/s in a location where the acceleration due to gravity has a magnitude of 9.81 m/s2. To what height does it rise? Help meh please.

    asked by Aisumi
  27. Physics question bout falling

    Objects that are falling toward Earth in free fall move a)faster and faster. b)slower and slower. c)at a constant velocity. d)slower then faster.

    asked by Aisumi
  28. chem

    (b) If the natural abundance of Ag-107 is 51.84%, what is the natural abundance of Ag-109? 48.16 % (c) If the mass of Ag-107 is 106.905, what is the mass of Ag-109? 108.9 amu so i got the answers correct but kinda forgot how because it took me a while so

    asked by lisa
  29. inorganic chemistry

    what is the geometry structure of Fe(NH4)2(SO4)2.6H2O?

    asked by Akkie
  30. Physics I

    You are conducting an experiment inside a train car that may move horizontally along rail tracks. A load is hung from the ceiling on a string. The load is not swinging, and the string is observed to make a constant angle of with the horizontal. No other

    asked by Anonymous
  31. statistics

    The weights of individual nails produced by the 'Hammer 'n Nail' hardware company follow a normal distribution with the average nail weight being 5.1 grams and the standard deviation in nail weight being 1.6 grams. When a nail is produced it is discarded

    asked by GiNa
  32. Algebra story problem

    I hate story problems they r a nightmare. One poll reported that 48% of city residents were against building a new stadium. The polling service stated that the poll was accurate to within 3%. What is the minimum percent of city residents that oppose the

    asked by Aisumi
  33. English

    Can you check if these sentences are grammatically correct? Thank you 1) It's the ages since I last saw him. I haven't seen him for ages. 2) When did you see him last? 3) How long ago is it since you last saw him? 4) She regretted that she hadn't passed

    asked by Franco
  34. English

    What is the verb, the subject, the predicate nominatives, and direct object in the folling sentence 1.In September of 1739, David Brainerd entered Yale College. 2. Yale was a good school for young preachers. 3. After four months of school, Mr. Brainerd

    asked by Kim
  35. chemistry

    suppose 100 g of lead nitrate salt is added to enough water to make 1 L of solution, what is the concentration of the lead ion in the moles per liter in each of the solutions?

    asked by Anonymous
  36. chemistry

    suppose 100 g of lead nitrate salt is added to enough water to make 1 L of solution, what is the concentration of the lead ion in the moles per liter in each of the solutions?

    asked by Anonymous
  37. english

    please can you help me with six sentences with the collocations below: 1-out of breath 2-out of this world 3-dry clothes 4-sleep heavily 5-turn cold 6-a dry sense of humour

    asked by Anonymous
  38. earth

    If the Earth has so much mass, then how does it "float"? (My 8th grade Astronomy class trying to figure this out. -Lauren

    asked by Lauren
  39. chemistry

    how can I find the mass of 0.0225 mole of NH3?

    asked by cindy
  40. Stats

    Instructions for Data Sets: In each data set, the dependent variable (response) is the first variable. Choose the independent variables (predictors) as you judge appropriate. Use a spreadsheet or a statistical package (e.g., MegaStat or MINITAB) to perform

    asked by Kim
  41. physics

    A water tank measures 2m*4m*5m. what mass of water will it contain

    asked by chelsea
  42. geometry

    The sides of a quadrilateral are 3, 4, 5, and 6. Find the length of the shortest side of a similar quadrilateral whose area is 9 times as great.

    asked by callie
  43. College Anatomy

    Where do bones increase in length? Where do bones increase in diameter?

    asked by Becky
  44. Physics

    If an object weighs 70 pounds and it gets hit by a truck with a force of 7400 N, and there is a frictional force of -35 N, what is the net force?

    asked by Geoff
  45. MATHS! URGENT!

    describe how each sequence is generated and write down the next two terms: a) 40 41 43 46 50 55 b)90 89 87 84 80 75 c)1 3 7 13 21 31 d) 2 6 12 20 30 42 PLEASE HELP its urgent!

    asked by Ami
  46. chemistry

    If the decomposition of 3.785 g iron (III) chloride yields 1.302 g iron and 2.483 g chlorine, how many grams of iron and chlorine are produced when 2.175 g iron (III) chloride decomposes?

    asked by allie
  47. English

    what poem does " That there our veins might through Thy Person bleed/To quench those flames, that else would on us feed" come from?

    asked by Ariel
  48. history of africa

    how did geography help or hinder the process of migration from middle east to africa

    asked by ronald
  49. medical terminology

    which of the following is an example of a symptom?

    asked by david
  50. computers

    With newer Linux kernel distributions, what happens if you connect a hot-swappable device, such as a USB drive, containing evidence?

    asked by Tom
  51. 7th grade math

    If two is company and three is the crowd,what are five and four?

    asked by Abby Heath
  52. math

    The lenght and the width of a rectangle are in the ratio 3:2. If the lenght is increased by 20 and the width is decreased by 5, the ratio of the lenght to the width becomes 2:1. Find the lenght and width of this rectangle.

    asked by mika
  53. physics

    Vector vector A has a magnitude of 6.90 units and makes an angle of 46.5° with the positive x-axis. Vector vector B also has a magnitude of 8.00 units and is directed along the negative x-axis. Using graphical methods find the following. (a) The vector

    asked by Bill Muary
  54. physics

    a stone of mass 30 grams is placed in a measuring cylinder containing some water. the reading of the water level increases from 50cm cubic to 60cm cubic. what is the density of te stone?

    asked by chelsea
  55. chem 101

    you have solutions of MgSO4(aq) and MnSO4(aq). what would you add to distinguish between the two?

    asked by Allisha
  56. chem 101

    write a balanced chemical equation for the complete combustion of sucrose.

    asked by emily
  57. Statistics

    Is the following classified as interval, ordinal or nominal data? The marks achieved by the students in a statistics course out of 100.

    asked by Rhea
  58. chem 101

    if combustion is complete, a brown liquid caramel might form, followed by a brown/black solid. what would be the major component of the solid?

    asked by emily
  59. Linear equations i think

    If y = 4x + 14, what is the value of y ÷ -4? choices a) x+7/2 b) -x - 14 c) -x + 14 d) none of these

    asked by Aisumi
  60. Physics

    Estimate the work you do to mow a lawn 14m by 23m with a 0.5m-wide mower. Assume you push with a force of about 15N.

    asked by Phil
  61. math

    how to simplify (1-cos^3(x))/(x^2)

    asked by Anonymous
  62. Algebra help

    Solve by completing the square x2 - 2x - 5 = 0. Help please a)1 plus or minus√6 b)-1 plus or minus√6 c)-3 plus or minus 2√6 d)3 plus or minus 2√6

    asked by Aisumi
  63. physics

    a circuit consists of two identical parallel metallic plates connected by identical metallic springs to a 102V battery. With the switch open, the plates are uncharged, are separated by a distance d=7.80mm, and have a capacitance C=2.00microF. When the

    asked by Tracy
  64. Chemistry

    a nugget of gold with a mass of 437g is added to 50ml of water the water raised to a volume of 90.0 ml what is the density of the gold

    asked by christine
  65. Chemistry

    How can the absorptivity of alumina be varied? Thank you all:)

    asked by ZC
  66. Chemistry

    What difficulty may result if a chromatographic column is not placed in a vertical position?

    asked by ZC
  67. hcs 588 MEASURING PERFORMANCE standards

    What key QI measurement tools would you use to measure quality outcomes such as a reduction in patient falls, medication errors, complication rates, and so forth? Why?

    asked by keisha
  68. english

    Read the poem Remember ? by Alice Walker and answer the questions. -> Why is the title effective? -> What metaphor is used in the poem and what other two poetic techniques does Alice Walker use?

    asked by Taylor
  69. MATH- PLEASE HELP

    Solve the compound in equality. I don't know how 5>-3x + 4 or 9 to -4x2. THANK YOU!!!

    asked by kalaya
  70. NewGeometry

    Line segment XY has a midpoint of L. 1/3XY = 3. What is the midpoint of XY?

    asked by angie
  71. math

    A college student invested part of a $25,000 inheritance at 7% interest and the rest at 6%. If his annual interest is $1,671 how much did he invest at 6%? If I told you the answer is $8,000, in your own words, using complete sentences, explain how you

    asked by Toni
  72. chem 101

    a.write a balanced chemical equation for the complete combustion of sucrose. --- this part of the question i got help on, and thank you b. if combustion is complete, a brown liquid caramel might form, followed by a brown/black solid. what would be the

    asked by emily
  73. Physics

    A block of mass m is attached to a string and suspended inside an otherwise empty box of mass M. The box rests on a scale that measures the system’s weight. (a) If the string breaks, does the reading on the scale change? Explain your reasoning. (b)

    asked by Lynda
  74. Physics

    A pilot with a mass of 50 kg comes out of a vertical dive in a circular arc such that at the bottom of the arc her upward acceleration is 3.5g. (a) How does the magnitude of the force exerted by the airplane seat on the pilot at the bottom of the arc

    asked by Jenny
  75. calculus

    Find k such that the line is tangent to the graph of the function. Function Line f(x) = k√x y = 4x + 36

    asked by vy
  76. Physics

    Small, slowly moving spherical particles experience a drag force given by Stokes’ law: where r is the radius of the particle, is its speed, and ç is the coefficient of viscosity of the fluid medium. (a) Estimate the terminal speed of a spherical

    asked by Maggie
  77. Chemistry

    a dose of asprin of 5.0mg per kilogram of body weight has been perscribed to reduce the fever of an infant weighing 8.0 pounds one pound is 453.59g what is the number of milligrams of asprin that should be administered

    asked by christine
  78. Chemistry

    consider a neutral atom with 69 protons and 80 neutrons what is the atomic number of this element

    asked by christine
  79. Algebra

    What is the GCF of -26x5 + 4x3 + 2x2? how do i figure this out step by step please:)

    asked by Aisumi
  80. Chemistry

    when a platinum wire dipped into an unknown solution was held over a Bunsen burner flame, an intense purple colour resulted. when 6 drops of 1M AgNO3(aq) in 6MHNO3(aq) was added to this solution, a white-coloured precipitate formed. What is the chemical

    asked by KJ
  81. Chemistry

    how many neutrons are in an element of mc where x =124 and y = 22

    asked by stacy
  82. organic chemistry

    assuming the reaction goes to completion, calculate the volume of 6M KOH needed to completely neutralize all of the hydrogen bromide formed.

    asked by Scisi
  83. Chemistry

    magnesium is a valuble metal used in alloys in batteries and in manufacture of chemicals it is obtaine mostly in sweater which is about 1.3g mg for every kilogram of sweater assume that the sweater has a density of 1.03g/ml calculate the volume of the

    asked by stacy
  84. English

    what are presents for?

    asked by Paul
  85. Math-New Geometry

    Choose the correct property illustrated by the following statement: If 3m¡ÐZ = 90¨¬, then m¡ÐZ = 30¨¬ Please help know its either division property or reflexive property...im not sure wich though..if any one knoes its very appreciated thxx

    asked by anne
  86. business

    when writing informative and positive messages,you should include reader benefits when: A)the reader attitude toward the information doesn't matter. B)you are presenting policies. C) stressing benefits may make the reader sound selfish. D) you are

    asked by Anonymous
  87. Math

    If triangle XYZ is equilateral and the length of one side is 7.5, what is the perimeter of XYZ and what is the measure of each angle?

    asked by Rose
  88. english

    The prompt states "Note the irony in Nadine Gordimer's Once Upon a Time. Argue to what affect and how successfully irony is used and what it accomplishes." I know that the irony lies in the fact that Gordimer starts the fairy tale by stating that she hates

    asked by kajsa
  89. Math

    Solve the equation for x. 3x + 23 = 7 x = ?

    asked by Anonymous
  90. physics

    A hockey puck struck by a hockey stick is given an initial speed v0 in the positive x-direction. The coefficient of kinetic friction between the ice and the puck is μk. (a) Obtain an expression for the acceleration of the puck. (Use the following as

    asked by Anonymous
  91. physics

    A hockey puck struck by a hockey stick is given an initial speed v0 in the positive x-direction. The coefficient of kinetic friction between the ice and the puck is μk. (a) Obtain an expression for the acceleration of the puck. (Use the following as

    asked by Anonymous
  92. geometry

    Solve the equation for x. -5x = 3 + y is it x = (3+y)/-5

    asked by Rose
  93. physics

    The coefficient of kinetic friction between a refrigerator (mass 93 kg) and the floor is 0.12, and the coefficient of static friction is 0.35. If you apply the minimum force needed to get the refrigerator to move, what will the acceleration then be? ____

    asked by Anonymous
  94. physics

    A 5.4 g bullet leaves the muzzle of a rifle with a speed of 334 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.95 m long barrel of the rifle? ___N

    asked by jerr
  95. physics

    A freight train has a mass of 1.2 107 kg. If the locomotive can exert a constant pull of 6.5 105 N, how long does it take to increase the speed of the train from rest to 60 km/h? ____min

    asked by jerr
  96. Math

    If a triangle has sides that measure 6, 5, and 5.999, is the triangle isosceles, equilateral, or scalene?

    asked by milli
  97. science

    A boat crossing a .2 mile wide river is heading perpendicularly relative to shore. Its speed in still water is 4mph and the speed of the current is 6mp. a.) How far downstream will the boat land? b.) How long will it take for the boat to cross i.) with the

    asked by laura
  98. english/literacy

    i need to write a funny speech about banning something but i don't know what topic to choose please help me!

    asked by anonymous
  99. physics

    A person jumps from the roof of a house 4.0- high. When he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.74. 1)If the mass of his torso (excluding legs) is 40 , find his velocity just before

    asked by Austin
  100. calculus

    A boat is pulled into a dock by a string attached to the bow of the boat and passing through a pulley on the dock that is1ft higher than the bow of the boat. If the string is pulled at a rate of 3 ft/second, how fast is the boat approaching the dock when

    asked by sam
  101. physics

    Consider the system shown in the figure with = 9.5 and = 15.0 . The angles = 59 and = 32. 1)In the absence of friction, what force would be required to pull the masses at a constant velocity up the fixed inclines? the force is now removed. What is the

    asked by Austin
  102. calculus

    The equation x^2 y+2xy^3=8defines y as a function of x,y=f(x), near x=2, y=1. a) Find dy/dx. b) Now, find the slope of the curve x^2y+2xy^3=8 when x=2, y=1.

    asked by ibo
  103. calculus

    A rocket rises vertically from a point on the ground that is 100m from an observer at ground level. The observer notes that the angle of elevation is increasing at a rate of 12∘per second when the angle of elevation is 60∘. Find the speed of the rocket

    asked by ibo
  104. calculus

    A conical tank has height 3m and radius 2m at the top. Water flows in at a rate of 2m^3 /min. How fast is the water level rising when it is 2m.

    asked by esma
  105. 9th grade

    the shower is the story in line 1-4 the speaker usesa metaphor to compare the twilight to

    asked by Cynthia
  106. algebra

    The perimetre of a rectangle is 132 inches.The length exceeds the width by 14 inches. What is the length and the width?

    asked by James H.
  107. MATH FINANCE

    Mr. Smith wants to save for his son’s college education. If he deposits $300 each month at 12% compounded monthly, how much (to the nearest penny) will he have in the account after 8 years? Answer = $ HOW DO I SOLVE THIS ??

    asked by COURTNEY
  108. hcs 588 MEASURING PERFORMANCE standards

    What key QI measurement tools would you use to measure quality outcomes such as a reduction in patient falls, medication errors, complication rates, and so forth? Why?

    asked by keisha
  109. MATH FINANCE

    Find the monthly payments for an ordinary annuity that will yield a future value of $80000 at 9 1/2% interest for 38 years. I DON'T KNOW HOW TO SOLVE THIS PROBLEM CAN SOME ONE HELP ME???

    asked by COURTNEY
  110. physics

    A person jumps from the roof of a house 3.6 -m high. When he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.70 {\rm m}. If the mass of his torso (excluding legs) is 46 kg. Find the average force

    asked by Lacey
  111. 2nd time posting bc i still need HELP! PHYSICS!!!!

    The velocity of a diver just before hitting the water is -8.6 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 0.86 s of the dive? im so stuck. i tried this problem several times, and my

    asked by MC
  112. physics

    How much work (as measured in joules) is required to push an electron through a region where the potential change is +73 V? Assume the electron moves from a region of low potential to a region of higher potential. 1 J

    asked by melody
  113. physics

    Two point charges are located as shown in the figure, with charge q1 = +3.2 C at x = − 3.0 m, y = 0, and charge q2 = +2.5 C at x = +1.0 m, y = +2.0 m. An electron is now taken from a point very far away and placed at the origin. How much work must be

    asked by melody
  114. physics

    Four point charges, each with Q = 7.2 µC, are arranged at the corners of a square of edge length 3.6 m. What is the electric potential at the center of the square? 1 V

    asked by melody
  115. chemistry

    how does electronegativity and charge effect a solutions solubility

    asked by don
  116. nutrition

    After World War II, farming, fishing, and other food production activities became large scale enterprises which caused Question 5 answers a decrease in economic development. American diets to become less diverse. the over producing and over consuming of

    asked by destiny
  117. physics

    A 5.4 g bullet leaves the muzzle of a rifle with a speed of 334 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.95 m long barrel of the rifle? ___N

    asked by jerr ******
  118. physics

    The coefficient of kinetic friction between a refrigerator (mass 93 kg) and the floor is 0.12, and the coefficient of static friction is 0.35. If you apply the minimum force needed to get the refrigerator to move, what will the acceleration then be?

    asked by jerr ******
  119. math

    determine the slope of the line shown at the slope the graph top point 6y the right point 6x. the left is -6 and the bottom-6,m= type an integer or a simplified fraction type N if the slope is undefined.

    asked by Anonymous
  120. science

    Each liter of air has a mass of 1.80. How many liters of air are contained in 2.5 times 10 to the third power kg of air?

    asked by Ashley S
  121. Chemistry

    A first order chemical reaction has a rate constant of 8.7×103 s-1 at 30 °C and a rate constant of 5.8×104 s-1 at 64 °C. Calculate the activation energy, Ea, for the reaction. I keep getting 5.25e-6 kJ/mol but apparently that's not the correct answer.

    asked by Anonymous
  122. About the website

    Is there anyway you can apply to be a tutor on here?

    asked by Dawn
  123. DNA

    What nucleotide sequences do not code for proteins?

    asked by amelie
  124. grade 6 math

    Clayton and Olivia played a computer game. Olivia's final score was 2 306 421 and Clayton's was 2 302 972. Show these numbers on a number line. Whose score was greater? I know which score is greater but I am having trouble figuring out the number line and

    asked by peyton
  125. college

    I need to write 5 sentences showing the verb and its tense. The sentences need to be about the role of education in sucessful financial planning. I am so confused

    asked by J
  126. 5th grade

    What do parentheses mean in Math?

    asked by Courtney
  127. physics

    A car accelerates from rest at 7.9 m/s2. How much time does it need to attain a speed of 5 m/s? Answer in units of s.

    asked by steve
  128. South America

    an area that has one or more features in common

    asked by Anonymous
  129. Math

    Find each specified function value: What am I doing wrong because the correct answer for (a) is 3 and (b) is -t^3/4-5t^2/4-t+3 Here's the problem: P(x)=2x^3-5x^2+2x+3 (a) P(0) 2(0)^3-5(0)^2+2(0)^3 2-5+3 my answer I get O (b) Here's the problem

    asked by Heather
  130. Math

    Evaluate each polynomial for the given value of x. 3x^2+2x^2-3 (a)x=-2 (b) x=t (c) x=2u (d) x=-3v

    asked by Heather
  131. functions

    Identify a rational function whose graph is a horizontal line except for two holes. Graph function.

    asked by Tori
  132. 3rd grade

    complete to show how you can find the sum by making a ten, hundred, or thousand. 9+5=14 9+1+ blank 10+ blank blank 90+50=140 90+10+blank 100+blank blank 900+500=1400 900+100+blank 1000+blank blank

    asked by thomas
  133. social studies

    vocabulary an area that has one or more features in common.

    asked by angel
  134. math

    write in order from least to greatest the six numbers whose digits are 2,8,and 9

    asked by kim
  135. Chemistry

    A first order chemical reaction has a rate constant of 8.7×103 s-1 at 30 °C and a rate constant of 5.8×104 s-1 at 64 °C. Calculate the activation energy, Ea, for the reaction. I keep getting 5.25e-6 kJ/mol but apparently that's not the correct answer.

    asked by Anonymous
  136. 7th grade

    What is a 12 letter word for observations involving descriptions based on instrument measurment?

    asked by Chris
  137. social studies

    what is lattitude?

    asked by jade
  138. geography

    name at least 5 bodies of water ? what are they thank you

    asked by jane
  139. Math

    data regarding the value of a particular color copier is represented in the graph find the rate of chance of the value with respect in time in dollars per year. the rate of change of the value with respect to time is dollars per year

    asked by Anonymous
  140. algebra2

    s2-3s+t+5s2

    asked by donovan
  141. Physics

    One gram of water changes from liquid to solid at a constant pressure of 1.00 atm and a constant temperature of 0°C. In the process, the volume changes from 0.60 cm3 to 1.14 cm3. Find the work done on the water? Find the change in the internal energy of

    asked by Nate
  142. geometry

    Line segment XY has a midpoint of L. 1/3XY = 3. What is the midpoint of XY?

    asked by shann
  143. college

    what is the proper verb tense in the sentence below? With an education i will be able to find a better job?

    asked by J
  144. Translation simple question

    Can anyone please give me a decent translating website I need english to french or french to english. Thanks.

    asked by Missy
  145. English

    what is the proper verb tense? With an education i will be able to find a better job?

    asked by J
  146. English

    Is this a present tense verb sentence? I believe education is a very important role in successful financial planning

    asked by J
  147. ecology

    what is a long-term change that takes place in two species because of their close interactions with each other?

    asked by taylor
  148. english

    What verb tense would this sentence be? I am learning so much about financial planning in my personal finance class.

    asked by J
  149. english

    where the red fern grows...how did seeing a red fern help billy

    asked by katherine
  150. physics

    A Carnot engine operates between 170°C and 20°C. How much ice can the engine melt from its exhaust after it has done 6.0 104 J of work? i need a step by step process. you don't have to give me the answer.

    asked by Nate
  151. chemistry

    For the reaction: 2MnO2+ 4KOH+ O2+ Cl2 yields 2KMnO4+ 2KCL+ 2H20 there is 100. g of each reactant available. Which reagent is the limiting reactant?

    asked by Cindy
  152. math

    At Mr. Vid's Rentals you can join his VID for a monthly membership fee of $30. Club members pay only $.85 to rent each movie. If you are not a member of the VID Club, the movies rent for $2.25 each. How many vidoes would you have to rent each month to make

    asked by Katherine
  153. DrBob222

    2N2O(g) → 2N2(g) + O2(g) d[N2O]/dt = -5.8×10-4 M/s at a particular temperature and set of concentrations. What are d[O2]/dt and d[N2]/dt? d[O2]/dt = d[N2]/dt = What is the rate of the reaction? my answer for the first one im getting -.00016 and the

    asked by Jane
  154. math

    How can you make 34 by only using the digits 1, 2, 3, and 4? You can put two numbers together (ie 12 or 34). You can use the operations: addition, subtraction, multiplication, (NO DIVISION!!), exponents, and parentheses any way you want!! Please help!!!!

    asked by Kate
  155. french

    Why must one say classe de francais, for french class, and not classe francaise? How does one know when to use de in a descriptive phrase?

    asked by Abbey
  156. english

    Would this sentence be past simple tense or past perfect tense? I learned how to create a financial plan and to budget money in my class.

    asked by J
  157. math

    In equilateral triangle ABC, AB=3x and BC= 2x=12. Find the numerical value of the perimeter of ABC.

    asked by Troy
  158. Physics

    You toss a coin straight up into the air. Sketch the velocity-time and acceleration-time graphs of the coin from the instant it leaves your hand until the instant it returns to your hand. Assume that the positive y direction is upward. Indicate on your

    asked by Cristina
  159. chemistry

    how much energy is required to heat 1.00L of water from 20degrees celcius to 90degress celcius

    asked by shawn
  160. english

    Is this past perfect I had never studied financing until I signed up for college.

    asked by J
  161. Math

    How do you solve this? (3x+2)(3x^2+5x-4)

    asked by Kyle
  162. calculus

    Determine the equation of a curve in the xy-plane that passes through the point (0, 1) and has the slope x2 sin 4x at any point (x, y) on the curve.

    asked by Sophie
  163. Geometry

    360/n = 30 How do I solve?

    asked by Anon.
  164. english

    Is this a better present tense sentence? I think education is a very important role in successful financial planning. And is THINK the verb?

    asked by J
  165. math

    How can you make 7 by only using the digits 1, 2, 3, and 4? You can put two numbers together (ie 12 or 34). You can use the operations: addition, subtraction, multiplication, (NO DIVISION!!), exponents, and parentheses any way you want!! Please help!!!! I

    asked by Kate
  166. physics

    if a person jumps from the tenth flor 30m to a pool thatis 5m away from the building, with what initial horizontally velocity must the person jump

    asked by lulu
  167. physics

    if a person jumps from the tenth flor 30m to a pool thatis 5m away from the building, with what initial horizontally velocity must the person jump

    asked by lulu
  168. physics

    if a person jumps from the tenth flor 30m to a pool thatis 5m away from the building, with what initial horizontally velocity must the person jump

    asked by lulu
  169. math

    An adult cheetah weighs about 130 pounds. An adult mountain lion weighs about 170 pounds. A sutdent estimates that a mountain lion weighs about twice as mush c as a cheetah. Is the estimate reasonable? Explain why or why not?

    asked by Aaron
  170. English

    Can you please check these sentences for me? Thank you very much. 1)As to the content, English Romanticism focused above all on the “individual” as the subject of all meaningful experience and the centre of life and art. 2) The Romantics saw the

    asked by Franco
  171. psy 325

    The t test for repeated measures is a hypothesis-testing procedure in which there are two separate groups at people tested and the population variance is not known

    asked by Anonymous
  172. psy 325

    The ________ is a hypothesis-testing procedure in which there are two separate groups at people tested and the population variance is not known

    asked by Anonymous
  173. Chemistry

    2N2O(g) → 2N2(g) + O2(g) d[N2O]/dt = -5.8×10-4 M/s at a particular temperature and set of concentrations. What are d[O2]/dt and d[N2]/dt? d[O2]/dt = d[N2]/dt = What is the rate of the reaction? my answer for the first one im getting -.00016 and the

    asked by Jane
  174. science

    How does the pH of rainwater vary throughout the United States in Texas, California , Pennsylvania Kansas , Massachusetts and, Washington ? thank you

    asked by jen
  175. Health Care

    Compose a list in which you dentify the major components of health communication. Who is involved in each component? How does each component promote health communication? If not utilized, how would it reduce health communication?

    asked by Anonymous
  176. math

    I hope you understand because I'm trying to make I look like what it looks like for my homework. how would I solve: x = 1 4 2

    asked by philena
  177. English

    I forgot to include these other sentences. Thank you. 1) The captain offered him a place on his next ship's voyage (or ship's next voyage) to Africa. During his second ship's voyage to Africa they were taken prisoner by pirates. The captain made him his

    asked by Franco
  178. science

    how to make a 3D sulfur atom model

    asked by Anonymous
  179. math

    sorry it looks confusing:solve x = 1 4 2

    asked by philena
  180. math

    write an expression whose value equal 10

    asked by stephen
  181. math

    You have a five gallon bucket and a three gallon bucket. How do you get exactly four gallons of water with using the five gallon and three gallon bucket?

    asked by Nate
  182. geography

    Lisbon is to Portugal as ______________ is to Cameroon. Since Lisbon is the capital of Portugal my answer is Yaounde because that is the capital of Cameroon. Is that correct?

    asked by Reed
  183. 9th grade science

    Is there a relationship between the pH and the colour of soil? if so describe the realtionship.

    asked by peyton
  184. geography

    What is the difference between a Natural boundary and a political boundary? Give examples of each. A natural boundary something which separates things or places and is caused by geographic or physical items. A political boundary is a line on a map that

    asked by Reed
  185. geometry

    Make a prediction of the height of a learner if the height from the ground to the belly button is 0.9m

    asked by Ratanang
  186. Physics

    During a circus performance, a 75-kg human cannonball is shot out of an 19-m-long cannon. If the human cannonball spends 0.94 s in the cannon, determine the average net force exerted on him in the barrel of the cannon

    asked by Xavier
  187. Physics

    To hoist himself into a tree, a 66.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch of the tree. He then pulls downward on the free end of the rope with a force of 366 N. Neglect any friction between the rope

    asked by Xavier
  188. physics

    A 435-kg sailboat has an acceleration of 0.80 m/s2 at an angle of 50° north of east. Find the magnitude and direction of the net force that acts on the sailboat

    asked by Xavier
  189. math

    a prism with a square base has a height of 45 cm and its volume is 7,200,000 cm^3. Would the answer be 9,720,000,000? if not,I need help figuring out how to solve and answer

    asked by asia
  190. college

    why do religions tell stories about their founders lives.

    asked by Zach Marcil
  191. Math 3 grade

    wright a true number sentence using all of the given numbers and symbols 6,9,7,5,3,=,+,+,

    asked by Holly
  192. English

    In the sentence, "He loves to watch television.", what part of speech is the word loves?

    asked by Leslie
  193. criminal justice

    1. What do you think of professional jurors? 2. How can jurors keep their own personal bias out of thier decisions in the trial process?

    asked by paula
  194. English

    For the poem, "Remember?" by Alice Walker, What is poem's message?

    asked by Taylor
  195. math

    how to solve a prism with a square base that has a height of 45cm and its volume is 72000000cm^3. how do I solve it?

    asked by asia
  196. Literature question

    Can you give me a summary to the story Sinners in the Hands of an Angry God? Thanks. By the way if you do give me a link please don't give me a google link because for some reason my computer doesn't want to pull up google's homepage. Thanks.

    asked by Rachel
  197. health

    what brings energy and oxygen into the body?

    asked by Emma
  198. geography

    Which polar region contains more land? Well, since the northern polar region is floating on top of the Artic ice sheet and has no land under it. My answer is the Southern polar region has more land. It has Antartica. Correct?

    asked by Reed
  199. How to post links

    How do you post links on here? I tried to post one, but it didn't let me.

    asked by Dawn
  200. chemistry

    A scientist wants to make a solution of tribasic sodium phosphate, , for a laboratory experiment. How many grams of will be needed to produce 400 of a solution that has a concentration of ions of 1.20 ?

    asked by Marry
  201. math

    Event Probability Too much enamel 0.25 Too little enamel 0.2 Uneven application 0.35 No defects noted 0.42 (1) What is the probability of a paint defect? What is the probability of a paint defect which includes an improper amount of paint?

    asked by Jordan
  202. Social Studies

    In the Fall of Rome, what were the results of the movement of different Germanic tribes on the trade and political systems of the Roman Empire?

    asked by Cesar
  203. math

    2.5 x 10^2=__x10^3 what is the answer and explain how you kno its correct for a better understanding for me

    asked by bionca
  204. statistics

    Event Probability Too much enamel 0.25 Too little enamel 0.2 Uneven application 0.35 No defects noted 0.42 (1) What is the probability of a paint defect? What is the probability of a paint defect which includes an improper amount of paint?

    asked by Jordan
  205. Literature

    Can I get your opinion on the story Sinner's in the Hands of An Angry God. What would be your personal response of this story. (I just need an idea)

    asked by Rachel
  206. math

    sheila spent 90-minutes writing songs for her next album,then took a 15-minute break,went to the studio and worked for 1 1/3 hours,and then workde out for 1/2 hour at the gym. if shiela left the gym at 2:20PM,at what time did she start writing songs for

    asked by ciara
  207. us history

    what were European attitudes toward Native Americans?

    asked by Kimberly
  208. Medical Terminology

    Can you help me create a story with 30 Medical terms?

    asked by Mary
  209. Social Studies

    How can the World-System theory be applied to the events in Timor Leste since August 1999?

    asked by Natasha
  210. Math

    Evaluate each polynomial for the given value of x. 3x^2+2x^2-3 (a)x=-2 (b) x=t (c) x=2u (d) x=-3v

    asked by Heather
  211. 6th grade math

    the water level of a river is 50 feet. After one day,the water level has decreased to 38,5 feet. After two days, the water level is 37 feet,and after three days,the water level is 35.5 feet. write an equation to represent the water level,L after d days.

    asked by dashana
  212. Physics

    A matchbox car with mass M rolls down a ramp, starting from rest. It takes a time T to roll a distance L on the ramp. What is the car’s acceleration down the ramp?

    asked by Brianna
  213. physics

    The pendulum swings past the pole 14 times in 21 seconds. The weight of the bob is 10g. Calculate the period?

    asked by Sue
  214. math

    Make as many triangles with the side measurements of 6, 8, and 10 cm.

    asked by bridgett
  215. mathe

    rewrite the number sentences with parenteses to make them correct

    asked by destiny
  216. Math

    Hello, what's the next number in 2,4,12,32.... ? is it 72 then 256?

    asked by Lakshmi
  217. math

    Help with Implicit differentiation y-y^3=x

    asked by BOBBY
  218. calculus

    Prove that cos(sin inverse x) = square root ( 1-x^2)

    asked by Samantha
  219. math

    How would I solve for R? R^2 + (4400)^2 = (R + 1.5)^2

    asked by Pegs
  220. calculus

    Prove that cos(sin inverse x) = square root ( 1-x^2)

    asked by Samantha
  221. algabra II

    does anyone have the answers to exam 00703600 inequalities, permutations, and probabilities i just need the part on graphing the inequalities

    asked by kay
  222. math

    wich number sentance is not right 2,798>2,978 2798>7,298 2,798

    asked by carlos
  223. science

    what do the ozone and oxygen have in common?

    asked by noelia
  224. geometry

    M is the midpoint of line segment AB.Find the missing coordinate for each 10a. A:p-4 M:8 B:p+12 must use ruler postulat

    asked by shane
  225. Gym

    how can 5 students stand on a mat and without stepping on the floor flip it over?

    asked by Susan
  226. 6th grade

    if you had between 3 and 100 shells and counted by 3's, 4's and 5's and had 2 left over each time how many shells would you have

    asked by Justin
  227. math

    Assume that your sample space is S = {O1, O2, O3, O4, O5, O6 } with associated weights (probabilities) w1 = 0.15, w2 = 0.25, w3 = 0.10, w4 = 0.20, w5 = 0.15, and w6 = 0.15. Determine the probability of the following events: {O3 }∩{O5 }:

    asked by Tiff
  228. statistics

    Assume that your sample space is S = {O1, O2, O3, O4, O5, O6 } with associated weights (probabilities) w1 = 0.15, w2 = 0.25, w3 = 0.10, w4 = 0.20, w5 = 0.15, and w6 = 0.15. Determine the probability of the following events: {O3 }∩{O5 }:

    asked by Tiff
  229. Math

    x=0 2 4 6 y=8 18 28 38 If x=8 , Y=? pls show step by step

    asked by Sonny
  230. math

    1.10^3=1000 2.10^6=1000000 3.10^9=1000000000 4.10^14=100000000000000

    asked by AnOnYmOuS 1
  231. math

    a roof rises 1.1 feet vertically and 13.6ft horizontally what is the grade of the roof.

    asked by Anonymous
  232. 11th grade

    A roller coaster moves horizontally, then travels 45 m at an angle of 30 degrees above the horizontal. What is its displacement from its starting point?

    asked by Abby
  233. 11th grade

    a motorcycle changes velocity from 80km/h[N] to 100km/h[N] in 5.0 seconds. calculate her average acceleration

    asked by raman
  234. math

    identify each number as very large or very small 1. 0.000015=very small 2.6,000,000=very large

    asked by AnOnYmOuS 1
  235. H. Physics 11th grade

    while flying over the grand canyon, the pilot slows the plane down to one-half the velocity in item 3. If the wind's velocity is still 75 km/h toward the southeast, what will the plane's new resultant velocity be?

    asked by Abby
  236. H. Physics

    A plane travels 2.5 km at an angle of 35 degrees to the ground and then changes direction and travels 5.2 km at an angle of 22 degrees to the ground. what is the magnitude and direction of the plane's total displacement?

    asked by Abby
  237. math

    write each number in scientific notation 3.68,000=6.8x10^4 4.7,000,000=7x10^6 5.30,500,000,000=3.05x10^10 6.73,280,000=7.328x10^7

    asked by AnOnYmOuS 1
  238. Chem

    I have look and read and I still cant figure the couple out can someone please help? Number of orbital’s in the 2p subshell? And Number of electrons in 3d subshell? Number of electrons in a 3p orbital? Subshell block begins to fill after 4s2? Number of

    asked by Jennifer
  239. 6th grade math

    the water level of a river is 50 feet. After one day,the water level has decreased to 38,5 feet. After two days, the water level is 37 feet,and after three days,the water level is 35.5 feet. write an equation to represent the water level,L after d days.

    asked by dashana
  240. 5th grade Math

    x 0 2 4 6 y 8 18 28 38 If x=8 then y=??? Please answer in equation form like y=....

    asked by Sonny
  241. math

    yeah :/ anyone know algebra with "pizzaz" (yeah right,) pg 6? i know its "the ninja torttles chi squre test" ......idk but why? it wants us to show our work.

    asked by nessie
  242. operating system

    If /home/jenny/draft and /home/alex/letter are links to the same file and the following sequence of events occurs, what will be the date in the opening of the letter? ... Jenny changes the date in the opening of the letter to January 31, 2003, ...

    asked by Anonymous
  243. math

    a quarter after four in the afternoon in digital form

    asked by jojo
  244. Economics

    Name 2 government bodies or agencies that have an impact on the national housing market. Explain the role of each body or agency in relation to the housing market.

    asked by Emily
  245. Chemistry

    For every liter of sea water that evaporates, 3.70g of magnesium hydroxide are produced. How many liters of sea water must evaporate to produce 5.00 moles of magnesium hydroxide? Please show and explain all steps! Thank you!

    asked by Jack
  246. PIs 267

    How much work is need to raise a 110 kg loag of bricks 12m above the ground

    asked by Rose
  247. Chem

    I have look and read and I still cant figure the couple out can someone please help? Number of orbital’s in the 2p subshell? And Number of electrons in 3d subshell? Number of electrons in a 3p orbital? Subshell block begins to fill after 4s2? Number of

    asked by Jennifer
  248. algebra

    Graph y=x+3, y=x squared +3 and [x]+3 What are the similarities and differences.

    asked by Kay
  249. math

    Keyshia said that one of the following numbers is IRRATIONAL. Which number is IRRATIONAL and why is it IRRATIONAL? (-2/3,2/3,0.666...,or 0.676676667...)

    asked by evelyn
  250. statistics

    The game of roulette uses a wheel containing 38 pockets. Thirty-six pockets are numbered 1,2.....,36, and the remaining two are marked 0 and 00. The wheel is spun, and a pocket is identified as the "winner." Assume that the observance of any one pocket is

    asked by Hayli
  251. algebra

    2x^2+3x+4=

    asked by neicey
  252. 3rd grade

    i have a question. this is on my homework. im greater than 4/10 less than 5/10 i have 9 ones what number am i?

    asked by rosa
  253. science

    A 60-year-old patient who comes to the emergency room with shortness of breath is experiencing

    asked by brown
  254. math

    It is greater than 43 and less than 52 . If you add the digits, the sum is 8. write the nomber word . ???

    asked by brianna
  255. math

    Keyshia said that one of the following numbers is IRRATIONAL. Which number is IRRATIONAL and why is it IRRATIONAL? (-2/3,2/3,0.666...,or 0.676676667...)

    asked by evelyn
  256. math

    each letter stands for a different digit. If WAIT = 8472, what number does STOP reporesent? GO +SLOW _______ STOP

    asked by Emileigh
  257. Math

    Make a conjecture about the next item in each sequence. 1.4,6,9,13,18 -I know that from 4 to 6 they added 2 and then from there each time the number you add is 1 more than the last one, but I don't know how to make a conjecture. Thanks

    asked by Shadow
  258. US History

    Need to get these checked-- 3. Which of the following was a weakness of the Article of Confederation? a. Only Congress had the power to tax b. There was no legislative branch of government c. State governments had no authority d. There was no national

    asked by mysterychicken
  259. science

    what does the statement " the properties of salts are different from the properties of the elements that go into making them" means?

    asked by nicole
  260. college

    CheckPoint: Reagan’s Foreign Policy · Submit a 200- to 400-word response in which you discuss the three major areas of Reagan’s foreign policy. o Include supporting evidence from your readings following APA guidelines

    asked by nicole
  261. Math

    At Mr.Vid's Rentals you can join his VID Club for a monthly membership fee of $30.Club members pay only $.85 to rent each movie. If you are not a member of the VID Club, the movies rent for $2.25 each.How many videos would you have to rent each month to

    asked by Joe
  262. science

    A 60-year-old patient who comes to the emergency room with shortness of breath is experiencing A. dysphagia. C. pleural effusion. B. inspiration. D. dyspnea.

    asked by john
  263. Physics

    How many uranium atoms are there in 8.2 g of pure uranium? The mass of one uranium atom is 4 × 10^−26 kg.

    asked by Nora
  264. Physics ??

    A passenger sitting in the rear of a bus claims that she was injured as the driver slammed on the braked, causing a suitcase to come flying toward her from the front of the bus. If you were the judge in this case, what disposition would you make and why?

    asked by Chloe
  265. 4th grade

    Marty now has6 more pogs than jen has.After he gives 10 pogs to jen, how many more pogs will jen have then Marty?

    asked by rist
  266. spelling

    I need a sentence with its, not it's.

    asked by Dell
  267. Social Studies

    were is madagscar located.

    asked by GirlSense
  268. Spelling

    wats another word for happiness.

    asked by GirlSense
  269. algebra

    Write and solve an inequality to find the approximate circumference of Earth using the following information - the 4 million miles of public roads in the U.S. would: Reach to the moon and back more than eight times, circle the globe more than 157 times

    asked by Ashley
  270. math

    It is greater than 7 tens and less than 8 tens. The number has 4 ones . Write the number word . ???

    asked by brianna
  271. Accounting

    What would you pay for a $50,000 debenture bond that matures in 15 years and pays $5,000 a year in interest if you wanted to earn a yield of: (Round computations to 2 decimal places and use the rounded amounts to calculate the final answer. Round the final

    asked by Scott
  272. Algebra

    Express the following in simplest radical form. All variables represent positive real numbers. square root of 80a^2b divided by the square root of7a^3b^7 I got an answer of 4 square root of 5 divided by b^3 square root of 7a

    asked by Alex
  273. Math

    At Mr.Vid's Rentals you can join his VID Club for a monthly membership fee of $30.Club members pay only $.85 to rent each movie. If you are not a member of the VID Club, the movies rent for $2.25 each.How many videos would you have to rent each month to

    asked by alex
  274. Language Arts

    What are the appositives in this sentence:Football, a game loved by millions of people, is becoming even more popular.

    asked by Thomas
  275. APC Chemistry

    Suppose you have a solution containing both an iron (II) salt and an iron (III) salt. How would you proceed to identify both Fe2+ and Fe3+ in this solution?

    asked by Anonymous
  276. US History

    14. New France was shaped mainly by a. raising cash crops b. the fur trade c. enslaving Native Americans d. the search for gold B? 15. Which one of the following helped the colonial legislatures come to dominate colonial government? a. The king appointed

    asked by mysterychicken
  277. English

    I don't get what is ironic about this phrase from The Minister's Black Veil: "How strange that a simple black veil such as any woman might wear on her bonnet, should become such a terrible thing on Mr. Hooper's face" ? Is it because their all hiding behing

    asked by Amy~
  278. Algebra I

    I have been trying to figure this out for a long time to no avail. Can you please help. Also, are there any rules that help figuring these out? write a rule for the function represented by the graph. domain: 0,3,6,9 range : -2,-1,0,1

    asked by Denise
  279. Algebra 1

    Ferroza Can Buy A 24-Ounce Bag Of Ferret Food For $1.19, Or She Can Buy A 36-Ounce Bag For $2.89. Which Is The Better Deal? Justify Your Conclusion.

    asked by Kelsey Farmerr
  280. chemistry

    If you react 25.25 g of Na2CO3 with 50.0 mL of 6.0M HCl, answer the following questions: Na2CO3 + 2 HCl -> 2 NaCl + H2O + CO2 question: a) How many moles of HCl do you need to react completely with the 25.25 g of NaCO3? b) What is limiting reagent?

    asked by Sarah
  281. Math

    I don't get when you use "or" or "and" in inequalities. Like for this quadratic inequality: x^(2) +x -12 > 0 becomes x < -4 x > 3 why is the answer {x|x3} and not {x|3

    asked by Amy~
  282. STATISTICS

    Who is the king of the late night TV? An internet survey estimates that, when given a choice between David Letterman and Jay Leno, 52% of the population prefers to watch Jay Leno. Suppose that you randomly select three late night TV watchers and ask them

    asked by Hayli
  283. general chem

    identify the 2 substances whose aqueous solutions have common properties to a marked degree and explain your answer. a) CuS, CuCI2, Na2 S, KCI b) HCI, HC2H3O2, NH4C2H3O2

    asked by amber
  284. English

    The first movies were different from today’s films. What is the simple predicate

    asked by Craig
  285. ap chemistry

    If 4.50 g of (NH4)2SO4 is dissolved in enough water to form 250. mL of solution, what is the molarity of the solution?

    asked by mary
  286. science

    The term colon is often used instead of

    asked by john
  287. chemistry

    Balance acidic equation PbO2 and Pb

    asked by Anonymous
  288. english

    what are the five names assigned to transition categories?

    asked by Anonymous
  289. grammar

    Which sentence is correct I feel that us students.... or would it be I feel that we students... I think its us but I am not certain

    asked by Xavier
  290. chemistry

    how many pounds of uranium are needed to make a nuclear bomb

    asked by lee
  291. Finance

    What are some methods used to compare the financial condition of a competing organization?

    asked by Djay
  292. Math Help !

    For this x^(4) < x becomes x^(4) - x < 0 becomes x(x^(3)-1)

    asked by Amy~
  293. Finance

    If you are a shareholder in a profitable company, would you expect a dividend to be paid, or would you be satisfied if all earnings stayed within the organization as retained earnings? Please explain!

    asked by Djay
  294. 10th grade

    A metroid entering Earth's atmosphere has a speed of 70.0 km/s and a kinetic energry of 2.56 X 10^15 J. What is the mass of the meteroid?

    asked by Hailee
  295. English

    I believe in this sentence: It was the world’s first movie studio. the subject is: movie studio the predicate is: was Am I correct?

    asked by Craig
  296. 6th grade English

    Each family of potters has its own special designs. I have to identify the action verb. Would it be has?

    asked by Chris
  297. algebra

    find n so that squares and triangle has the same perimeter square is 8n+6 triangle is 13n+2 on two sides and 30n-28 on the other

    asked by art
  298. 7th grade

    Hi im a 7th grader and there is alot of book reports and homework in the 7th grade i really don't have time to do all that because im in extra cericular activities and i need to be passing all of my classes to be in my activities can somebody please help

    asked by Hailey
  299. U.S. History

    how are you guaranteed a trial if you are accused of a crime against the federal government?

    asked by Janet
  300. Sciene

    Mercury is 13.6 times more dense than water. If a container can hold 20g of water, how much more massive would an equal volume of mercury be?

    asked by Steve
  301. Science

    If the acceleration gravity is 1.6m/2 on the moon and you weigh 539 N on earth, how much do weigh on the moon?

    asked by Dave
  302. algebra

    Find n so that the square and triangle have the same perimeter. The square is 8n+6, the triangle is 13n+2 on two of the sides and 30n-28 on the other side. This is the question that I have for homework,I don't understand it. Thanks

    asked by art
  303. english

    What does relocalization within this text? what does relocalization mean within this text "A sane urbanism has to mean an intense commitment to RELOCOLIZATION, specifically to local economies. It means not spending $8 billion dollars to expand highway

    asked by Yoo
  304. History

    Describe Sumerian religious practices

    asked by martha
  305. Algebra 1 REPOST - Please Help!

    I have been trying to figure this out for a long time to no avail. Can you please help. Also, are there any rules that help figuring these out? write a rule for the function represented by the graph. domain: 0,3,6,9 range : -2,-1,0,1

    asked by Denise
  306. Social Studies

    the Legislative branch has a group of people that makes laws called the_____. congress is made up of two groups or "houses" called the______.

    asked by Miranda
  307. 8TH Grade social studies

    what does the constitution define treaty as?

    asked by Michelle
  308. Math

    what is f(x)=|x| and f(x)=x(cubed)

    asked by Miranda
  309. Social Studdies

    describe terrace farming in china

    asked by Maelyn from hawaii
  310. Calculus 2

    find the area of the region f(y)=y/(16-y^2)^1/2, g(y)=0, y=3

    asked by Amber
  311. Gradient Vector Fields in Mathematica 7

    How would you plot the gradient vector field of f(x,y)=x^2-3*x*y+y-y^2 on the domain [-4,4]*[-4,4] in Mathematica 7? I know the function is "VectorPlot" (h t t p : / / g o o . g l / p c S f), but I don't know how to isolate the x and y inputs because of

    asked by Greg
  312. Earth Science

    Please and Thank you. Mercury is 13.6 times more dense than water. If a container can hold 20g of water, how much more massive would an equal volume of mercury be?

    asked by Steve
  313. 5th math

    find the missing numbers and landmarkd for the set of numbers below: 18,20,20,24,27,27,____,30,33,34,36,36,_ Range:22 Mode:27 Minimum______ Maximum:______ please! show me this problem so, i can do my next problem thank you!!

    asked by pat
  314. Social studies

    the constitution requires each house to keep a daily record of all meeting. these records are printed daily in___________. the supreme court is made up of _____ supreme court justices who hold their offices for________.

    asked by Miranda
  315. social studies

    the supreme court hears cases dealing with represenatives of foreign nations and in cases in which one state has been named a party in a lawsuit. this is called______.

    asked by Miranda
  316. Algebra 2

    Is this how you solve t(t+1)(t+2)=0, x^3+4x=4x^2, and 3r^2=4r-1? t(t+1)(t+2)=0 t=0 or t= -1 or t=2 {0, -1, -2} x^3+4x=4x^2 x^3+4x-4x^2=0 x(x^2+4-4x)=0 x(x^2-4x+4)=0 x(x-2)(x-2)=0 x=0 or x=2 {0,2(double root)} 3r^2=4r-1 3r^2-4r+1=0 r^2-4r+3=0 (r-3)(r-1)=0

    asked by Anonymous
  317. physics

    The coordinates of point 1 are 250 units of X and 40 units of Y. The coordinates of point 2 are 250 units of X and 70 units of Y. The slope of the line between points 1 and 2 is what?

    asked by murelan
  318. Math

    Amanda checked out 7 fiction books from the library. She also checked out three times as many non-fiction books. The next day, Amanda returned 5 books to the library. How many books does she have now. Write an expression to explain your answer?

    asked by A.T.
  319. 5th

    find the missing number: 18,20,20,24,27,27,____,30,33,34,36,36,_ I need you to show me this answer cause, i got stuck with this one. thank you!

    asked by pat
  320. humanities

    Need a 750-1000 word essay on identify an individual or group of individuals who have continued to pursue liberty and happiness in the twentieth century and beyond.how have he/she/they impacted the world and how will their contributions impact future

    asked by Sobermom94
  321. Film

    In the film, "A Face in the Crowd", what is Elia Kazan trying to say about the commodification of these populist ideas and their use as a tool in mass media?

    asked by Dre
  322. science

    A patient presents with angina pectoris due to inadequate blood supply. Which diagnosis best describes this condition? A. Infarct C. Mitral valve prolapse B. Ischemia D. Varicose veins

    asked by sam m
  323. religion

    need help to unscramble words from the renaissance 1mgernay 2cahtcilo 3oppe 4gatrorypu 5formaretion

    asked by paul