Questions Asked on
March 18, 2012

  1. Introduction to statistics

    A vending machine dispenses coffee into an eight-ounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of .03 ounce. You can allow the cup to OVERFILL 1% of the time. What amount should you set as the mean

    asked by Shamin
  2. inverse trig HELP PLEASE!!

    Write the general solution to y = arcsin (0.6428). 40°±360°k 140°±360°k 220°±360°k 320°±360°k How do I find the right answer? I am like seriously stuck. I need help please.

    asked by Adrianna
  3. Physics

    You have a 2.00 kg block of lead. Lead melts at 327.5°C. CPb = 130.0 , and Hf for lead is 2.04 × 104 J/kg. Say you start at room temperature (25.0°C). How much heat must you transfer to melt all the lead?

    asked by Pat
  4. Chemistry

    Acid spills are often neutralized with sodium carbonate. For example Na2CO3 (s) + H2SO4 (aq)  Na2SO4 (aq) + CO2 (g) + H2O (l) An instructor dropped a 2.50 L bottle of 18.0 M H2SO4 on a cement floor. How much sodium carbonate would be required to

    asked by Elisa
  5. algebra

    1. The formula V=lwh is used to find the volume of rectangular prisms. Which equation solves for w? a. w=V-l-h b. w=Vlh c. w=lh/V D. w=V/lh 2. Mr. Marsupial invested $8,000, part at 6% interest and the reamainder at 8% interest. At the end of the first

    asked by Yaya
  6. chemistry

    Write an equation to represent the dissociation of propionic acid (CH3CH2COOH) in water. (Type your answer using the format H2O for H2O and [NH4]+ for NH4+. Use the lowest possible coefficients.)

    asked by Anonymous
  7. Physics

    A camera flashtube requires 5.0J of energy per flash. The flash duration is 1.0 ms. (a) what power does the flashtube use while it's flashing? (b)If the flashtube operates at 200V, what capacitance is needed to supply the flash energy? (c) If the flashtube

    asked by Britanee
  8. Chemistry

    A 25.00 mL sample of a clear saturated solution of PbI2 requires 14.3 mL of a certain AgNO3(aq) for its titration. I^-(from satd PbI2)+ Ag^+(from AgNO3)= AgI(s) So, this is where I am. using the Ksp equation for PbI2: 7.1*10^-9=4x^3 solving for x gives me

    asked by Ash
  9. CHEM, please help!

    What pH buffer solution is needed to give a Ni2+ concentration of 2.5 x 10-3M in equilibrium with solid nickel hydroxide Ni(OH)2? Ksp = 6.0 x 10-16.

    asked by Kate
  10. physics

    What will be the equilibrium temperature when a 245-g block of copper at 285„aC is placed in a 145-g aluminum calorimeter cup containing 825g of water at 12.0„aC?

    asked by lisa
  11. pre-calculus

    Convert from polar to rectangular r=3cos2theta

    asked by Tati
  12. CHEMISTRY

    Hydrogen gas and iodine gas react via the equation, H2 + I2 2HI, and K=76 at 600K. If 0.05 mole of HI is placed in a flask at 600K, what are the equilibrium concentrations of HI, I2, H2? I am very lost at where to even start with this problem

    asked by Kristen
  13. vectors components

    plz answer my question a river is 2 km wide and flows at 4km/h. a motorboat has a speed of 10 km/h in still water and heads out from one bank. a marina is directly across the river, on the opposite bank. if the motorboat heads directly toward the marina,

    asked by tarkan
  14. CHEMISTRY

    What is the electron configuration for the transition metal ion(s) in each of the following compounds? Na2[TaF7] Cant seem to figure this one out...

    asked by Sarah
  15. Physics

    Belinda needs to find the center of mass of a sculpture she has made so that it will hang in a gallery correctly. The sculpture is all in one plane and consists of various shaped uniform objects with masses and sizes as shown. The length of the rectangle

    asked by Priyanka
  16. Economics(Please respond, thank you)

    The table below shows the market basket quantities and prices for the base year (year 1) Base year 1 Price in price Quantity base year yr 2 Product Pizza 15 $3 $3.75 t-shirts 4 $10 $9 rent 1 $500 $550 In year 1 the CPI was? In year 2 the CPI was? I know

    asked by Hannah
  17. Ecomonics(Urgent,please respond)

    The table below shows the market basket quantities and prices for the base year (year 1) Base year 1 Price in price Quantity base year yr 2 Product Pizza 15 $3 $3.75 t-shirts 4 $10 $9 rent 1 $500 $550 In year 1 the CPI was? In year 2 the CPI was? I know

    asked by Hannah
  18. chem

    calculate the solubility of barium sulfate (Ksp=1.1x10^-10) in a) water b) a 0.10 M barium chloride solution help is GREATLY appreciated

    asked by brooke
  19. chemistry

    Write a balanced reaction for the formation of Fe2O3 (s)?????

    asked by Kayla
  20. physics

    Planet X has the same mass as earth, but its radius is only half as big. How does the gravity on this planet compare with the gravity on our planet earth?

    asked by Stephanie
  21. Physics

    A force of 60 N is exerted on one end of a 1.0-m-long lever. The other end of the lever is attached to a rotating rod that is perpendicular to the lever. By pushing down on the end of the lever, you can rotate the rod. If the force on the lever is exerted

    asked by Mr. R
  22. Chemistry

    The number of moles of hydrogen gas present in a 1500 mL container at 298 K and 2.0 atm pressure is?

    asked by Gladys
  23. Chemistry

    The solubility of a substance is 12.0 g per 100.0 g of water at 60 C. How many grams of the substance can crystallize from a saturated solution that contains 200.0 g of water at 60 C if the solution is cooled to 20 C?

    asked by Stephanie
  24. math

    harun and kuna competed in a 200-m race.harun ran at a speed of 5 m/s.kuna ran at a speed of 8 m/s.if they started at the same time, a.find the time kuna took to reach the finishing line. b.how far was kuna from harun when kuna reached the finishing line?

    asked by Da S
  25. chemistry

    A scientist measures the standard enthalpy change for the following reaction to be -53.4 kJ : Ca(OH)2(aq) + 2 HCl(aq) CaCl2(s) + 2 H2O(l) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of

    asked by Austin
  26. Chemistry

    What volume of 0.500 M hydrochloric acid is required to exactly neutralize 40.00 mL 0.150 M NaOH?

    asked by Arianna
  27. calculus

    A document is to contain 80cm squared of print. The margins at the top & bottom are each 2cm wide and margins on each side are 3cm wide. What should be the dimensions (in cm) of print so that a minimum amount of paper is used?

    asked by Khateeb
  28. statistics

    A student is interested in whether students who study with music playing devote as much attention to their studies as do students who study under quiet conditions (he believes that studying under quiet conditions leads to better attention). he randomly

    asked by kelly
  29. math

    LMN have vertices at L(0,4) M(-5,2),and N (2,-2). determine the equation for the perpendicular bisector that passes through MN

    asked by jan
  30. calculus

    The circumference of a sphere was measured to be 74 cm with a possible error of 0.5 cm. (a) Use differentials to estimate the maximum error in the calculated surface area. (Round your answer to the nearest integer.) cm2 What is the relative error? (Round

    asked by William
  31. Life orientation

    How drug addiction is a human factor that may cause ill health,accidents crises or disaster

    asked by Nokthula
  32. statistics

    Four research participants take a test of manual dexterity (high scores mean better dexterity) and an anxiety test (high scores mean more anxiety). The scores are as follows. Person Dexterity Anxiety 1 1 10 2 1 8 3 2 4 4 4 –2

    asked by Dawm
  33. Physics

    A cube of ice is taken from the freezer at -8.5 degrees celsius and placed in a 100 gram aluminum calorimeter filled with 300 grams of water at room temperature of 20 degrees celsius. the final situation is observed to be all water at 17 degrees celsius.

    asked by Donald
  34. chemistry

    A scientist measures the standard enthalpy change for the following reaction to be -53.4 kJ : Ca(OH)2(aq) + 2 HCl(aq) CaCl2(s) + 2 H2O(l) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of

    asked by Austin
  35. Chemistry

    Pure water boils at 100ºC (212ºF). When a substance is added to the water the boiling point increases due to what is referred to as the boiling point elevation. (a) What is the molecular mass of sucrose (C₁₂H₂₂O₁₁)? (b) If you add 100 g of

    asked by Hannah
  36. math

    janice scored 85% on the last test. she answered 34 questions correctly. how many questions were on the test?

    asked by jocelyn
  37. Chemistry

    What is the complete chemical equation? Al(s) + Cu(CH3COO)2(aq) -> ?

    asked by Zoe
  38. Physics

    A 44.0-kg woman stands at one end of a 148 kg raft that is 6 m long. The other end of the raft is 0.5 m from a pier. (a) The woman walks toward the pier until she gets to the other end of the raft and stops there. Now what is the distance between the raft

    asked by Priyanka
  39. trig

    a plane takes off at 10.00am from an airfield, and flies at 120km/h on a bearing of N35W. A second plane takes off at 10.05am from the same airfield, and flies on a bearing of S80E at a speed of 90km/h. How far apart are the planes at 10.25am?

    asked by Anonymous
  40. Chemistry

    The equilibrium constant Kc for the following reaction is equal to 0.20 at 250°C. Calculate the equilibrium constant Kp for the reverse reaction at the same temperature. COCl2 (g) = CO (g) + Cl2 (g) My Answer: To find the reverse reaction of Kc, it should

    asked by Raskin
  41. Math(Please help)

    0.0412 = 0.0015 - x / 0.025 + 1/2x Solve for x. 0.0412 = 0.015-x / 0.525x I am not sure where to go from here since there are two x's.

    asked by Hannah
  42. math

    lisa began her journey from home at 1350 and reached her destination at 1415. A.how long did she take for the whole journey? B.if the total distance taken was 45 km,find her speed.

    asked by Da S
  43. Economics

    what is the kyoto protocol?

    asked by Steph
  44. Physics

    A 67.0 kg person, standing on a diving board, dives straight down into the water. Just before striking the water, her speed is 5.50 m/s. At a time of 1.75 s after she enters the water, her speed is reduced to 1.10 m/s. What is the net average force

    asked by Foxxi
  45. Calculus II

    A 24 foot ladder is leaning against a building. Let x be the distance between the bottom of the ladder abd the building and let theta be the angle between the ladder and the ground. Suppose the bottom of the ladder is sliding away from the wall at a rate

    asked by Lynn
  46. chemistry

    A saturated solution is prepared by dissolving 3.2 g of a salt in 9.10 g of water to yield a saturated solution. What is the solubility of the salt (in g salt/100g of H2O)?

    asked by Riley
  47. algebra

    At what interest rate would a deposit of $45,000 grow to $110,682 in 30 years with continuous 38) compounding?

    asked by Sarah
  48. chemistry

    how much heat does it take to raise the temperature of 0.10 kg of gold bt 25 C?

    asked by Tawha
  49. Finance

    P17-3 (Available-for-Sale Investments) Cardinal Paz Corp. carries an account in its general ledger called Investments, which contained debits for investment purchases, and no credits, with the following descriptions. Feb. 1, 2010 Sharapova Company common

    asked by Yo
  50. physics

    A student sets up two speakers spaced 2.5 meters apart, each playing the same tone of a single frequency. She stands at point P, at an equal distance from each speaker and hears the tone playing loudly. She walks towards point Q, directly opposite one

    asked by elizabeth
  51. Chemistry Equilibrium Constant

    The initial pressures for I2 (g), H2(g), and HI(g) were Pi2 = 0.100 atm, Ph2 = 0.200 atm, and Phi = 0 atm, respectively. After the system came to equilibrium, the pressure of I2 (g) became very low, PI2 = 1.00 x 10^-5 atm. Calculate the equilibrium

    asked by Raskin
  52. Chemistry

    Calculate the pH of 100.0 mL ofa buffer that is 0.070 M NH4CL and 0.130 M NH3 before and after the addition of 1.00 ml of 5.55 M HNO3. Before = ? After = ? I know the base is NH3 and the acid is NH4Cl!

    asked by Jamie
  53. Chemistry

    At 25 degrees Celsius, the base ionization constant for NH3 is 1.8 x ^-5. Determine the percentage ionization of a M solution of ammonia at 25 degree Celsius.

    asked by Caitlin
  54. algebra

    The point of intersection of the graphs of the equations of the system Ax – 4y = 9 4x + By = –1 is (–1, –3). Explain how to find the values of A and B, then find these values.

    asked by Algebra PLEASE HELP!!
  55. Science-Chemistry

    In the following test for Sulfated Ash, ammonium carbonate solution was added. What is the purpose of adding ammonium carbonate solution? Heat a silica crucible to redness for 30 minutes, allow to cool in a desiccator and weigh. Place 1g of the substance

    asked by anne
  56. HVAC

    Why must all valves be open when an evacuation is performed?

    asked by Tony
  57. CHEMISTRY

    You mix 40.0 g of ethanol (C2H5OH, molecular weight = 46.1 g/mol) and 60.0 g of water (molecular weight = 18.0 g/mol) The resulting solution has a density of 920 g/L. a)Calculate the molarity of ethanol in this solution? Answer : 0.06 kg of H2O This is

    asked by Jen
  58. algebra 2

    the area of a square is numerically 165 more than the perimeter. find the length of the side

    asked by amanda
  59. geometry

    could you answer the question? Baes are isosceles trapeziods with parallel sides that measure 15 cm. and 25 cm. the distance between the parallel sides is 12cm. and the length of each of the equal sides is 13cm. the height of the prism is 20 cm. what is

    asked by lola
  60. physics

    When catching a baseball, a catcher's glove moves by 11 cm along the line of motion of the ball. If the baseball exerts a force of 407 N on the glove, how much work is done by the ball?

    asked by ryan
  61. Chemistry

    For the following reaction, the equilibrium constant KC = 97.0 at 900 K. If the initial concentrations of NH3 and H2S are both 0.20 M, what is the equilibrium concentration of H2S? H2S (g) + NH3 (g) ---> NH4HS (s)

    asked by Riley
  62. Chemistry

    In a 1.760 M aqueous solution of a monoprotic acid, 3.21% of the acid is ionized. What is the value of it's Ka? x=1.760M * 3.21/100 - .0565M Ka expression is Ka= {[H+][A-]} / [HA]

    asked by Jamie
  63. Chemistry

    What volume of a 3M KOH solution can be prepared by diluting 0.5L of a 5M KOH solution?

    asked by Adriane
  64. triganometry

    A landscape architect is designing a triangular garden to fit in the corner of a lot. The corner of the lot forms an angle of 50°, and the sides of the garden including this angle are to be 12 feet and 14 feet, respectively. Find, to the nearest integer,

    asked by Ayesha
  65. math

    how do i find the net electric field strenght if I have 8 q's( in a squared shape)..i am really confused..thanks

    asked by Rose
  66. Math(Please respond, thank you)

    The original equation was 1.7e-3 = (0.0015 -x)^2 / (0.025 +1/2x)(0.025 + 1/2x) Square root of both sides is 0.0412 = (0.0015-x) / (0.025 + 1/2x) Solve for x and when I put in -0.001 or 1.0e-3 it says that it is incorrect, I don't know why??

    asked by Hannah
  67. Chemistry

    a. Exactly 4.000 mol of NH3 is burned in a constant volume (bomb) calorimeter immersed into 100.0kg of water. The temperature of water increases by 3.619 degrees C after the reaction. Calculate the heat released by the reaction. Neglect the heat capacity

    asked by Wendy
  68. Algebra

    At a local park, there is a large circular fountain feature that is 50 feet across, surrounded by a path that is 8ft wide. A father and son plan to have a “friendly” race around the path. To be fair, the father agrees to run around the outside circle

    asked by kim
  69. algebra

    Can someone help me figure this out please? when you solve a system of equations by the substitution method, how do you determine whether the system of equations is inconsistent? thank you anyone

    asked by don
  70. algebra 2

    the height of a box is 6 inches. the length is three inches more than the width. find the width if the volume is 240 cubic inches

    asked by amanda
  71. geometry

    how many times the length of the diameter would divid into the length of the equator

    asked by Anonymous
  72. Chemistry

    The equlibrium constant K, for the reaction, H2 + CO2 H20 + CO, is 4.2 at 1650 degrees C. Initially, 0.80 mol H2 and 0.80 mol CO2 are injected into a 5.0L flask. Calculate the concentration of each species at equilibrium.

    asked by Kristen
  73. Genetics

    A certain form of albinism in humans is recessive and autosomal. Assume that 1% of the individuals in a given population are albino. Assuming that the population is in Hardy-Weinberg equilibrium, what percentage of the individuals in this population is

    asked by Anon
  74. Acoustic and Auditory Physics

    A resonant frequency is a frequency that resonates within a tube of some length. The first resonant frequency of the average ear canal is around 3,000 Hz. Look at the Fletcher-Munson diagram. Which of the following statements is correct? The intensity

    asked by Jenna
  75. chemistry

    A buffer solution was prepared by mixing 442 mL of 0.181 M NaOCl and 139 mL of 0.421 M HOCl. Calculate the pH of the solution given that Ka (HOCl) is 3.2 x 10-8.

    asked by cathy
  76. psychology

    What dictates the design (experimental versus quasi-experimental) and the type of manipulation used in a research study?

    asked by Betty
  77. Chemistry colloidExamples...

    give me 15 examples for colloid from the drinks that we use

    asked by tinky
  78. Math

    Multiplying a vector by a scalar results in: a) a scalar b) a perpendicular vector c) a collinear vector c) a parallel scalar

    asked by Jake
  79. algebra 2

    a ladder is resting against a wall. the top of the ladder touches the wall at a height of 6 feet. find the length of the ladder if the lenght is 2 feet more than its distance from the wall.

    asked by amanda
  80. algebra

    Explain why the addition method might be preformed over the substitution method for solving the system 2x – 3y = 10 5x + 2y = 6 What is the solution of this system?

    asked by Algebra PLEASE HELP!!
  81. applied physics

    you are standing on a 100m tall buiding above a street and your friend is standing vertically below the building. When you drop a stone, your friend simultaneously throws the identical stone as yours at a speed of 50m/s in the same straight line. Calculate

    asked by jose
  82. math

    Da Ming walks from his school to his house at a speed of 5km/h.he takes 20 minutes to reach home.what is the distance between his school&his house? Convert the time from minutes to hour and correct to 2 decimal places

    asked by Da S
  83. Math

    Consider a game where Ann and Bob play against each other in a dice game, Ann wins if her score is higher than Bob's, Bob wins if his score is higher or if the scores are the same. What is the probability of Ann winning? I calculated and got 1 - summation

    asked by mary
  84. Chem Lab Math!

    A liquid solution of formaldehyde is 37.0% pure. This solution has a specific gravity of 1.037. The molecular weight of formaldehyde is 30.0. to 1.00 ml of this impure stock solution is added quantity sufficient to take the total volume to 500ml. If 1.00

    asked by Morgan M
  85. chemistry

    The Equilibrium Constant Kp for the following reaction is 4atm^2 at 300K. AB(s) -> A(g) + B(g) What is the equilibrium pressure of A(g) and B(g) above AB(s) at 300K? What is Kc at 300K?

    asked by Raskin
  86. college algebra

    a rectangular box has a volume of V(x)=x^3+13x^2+50x+56 cubic inches. The height of the box is x+7 inches. The width of the box is x+4 inches. Find the length of the box in terms of x.

    asked by Missy
  87. Math 2

    Find the cartesian coordinates If (x,y) = (-3,8) then (r,theta) = ? I already got r it is -sqrt73 but i cant seem to get theta right. I got 110.556 but its wrong...please tell me how to do it thank you!!

    asked by UCI
  88. Chemistry

    You found an unknown metal sample shaped as a cube with each side measuring 2.00 cm. The cube's mass is 48.0 . Your colleague examined the mystery cube with X-ray diffraction and told you that it contains just one element arranged in a body-centered-cubic

    asked by Riley
  89. algebra 2

    two cars leave an intersection. one car travels north; the other east. when the car traveling north had gone 15 miles, the distance between the cars was 5 mile more than the distance traveled by the car heading east.how far had the east bound car traveled?

    asked by amanda
  90. Chemistry

    For the following reaction, the equilibrium constant KC = 97.0 at 900 K. If the initial concentrations of NH3 and H2S are both 0.20 M, what is the equilibrium concentration of H2S? H2S (g) + NH3 (g) ---> NH4HS (s)

    asked by Riley
  91. humanities

    for my homework my teacher has set me whats the meaning of a human honey pot and i cant find any good websites so i was wondering if you new any

    asked by Alex
  92. Physics - Static Forces

    Blocks 1 & 2 are connected by a string. Block 1 is on an incline & has a mass of 5.4kg. Block 2 is hanging from the string & has a mass of 2.1kg. The coefficient of friction is 0.22 between all surfaces. 1: What is the minimum angle "theta" can be while

    asked by Josh
  93. Thermo

    Calculate the standard cahnge in enthalpy for the combusation of coal/ Show the balnaced reaction. How does one get the balanced reaction of coal? Coal has many substances that make up its compsistion

    asked by Scott
  94. Maths

    The question says : the gradient of a curve is give by dy/dx = x^2 - 6x. Find the set of values of x for which y is an increasing function of x. I didn't understand what they are asking me to do could you solve and explain?

    asked by beavis
  95. English

    Could you please check these sentences? Thank you very much, Writeacher. 1) Your paragraphs show a good knowledge of the literary contents. As to the grammar, you are still unsure in the use of tenses and prepositions. 2) As to cohesion, you failed to

    asked by Matthew
  96. Physics

    A water bed has a dimension of 2m × 2m × 2m. The floor of the bed will tolerate an additional load of no more than 600N. Find the weight of the bed and determine whether it should be purchased.

    asked by Loiso
  97. chemistry

    Given 1.00L of a buffer containing 0.338 M CH3COOH and 0.093 M CH3COONa. Ka(acetic acid) = 1.8 x 10-5. Calculate the pH after the addition of 0.005 moles NaOH.

    asked by cathy
  98. physics

    A marble cylinder that has a diameter of 42 cm and stands 1.25 m tall rests on a flat tile deck. What is the pressure exerted on the deck by the cylinder?

    asked by john
  99. algebra

    FIND THE SLOP of line containing points(-2,8) and (3,5)

    asked by Anonymous
  100. Chemistry

    A 500g iron (Fe) rod was left in air for a long period of time, and got covered with rust (Fe2O3) as a result of reaction with atmospheric oxygen. The mass of the rusty rod was determined as 560g. a) calculate the theoretical yield of Fe2O3(s), that is the

    asked by Riley
  101. Calculus and vectors

    Please, help I don't understand vectors T.T 1. In the prism, assume all dimensions have different lengths, state the following: a) state 3 equal vectors to DC⃗ b) state 4 opposite vectors to BC⃗ ------------------------------------- Here is the prism

    asked by Melissa
  102. Math(Please someone respond, very confused)

    The original equation was 1.7e-3 = (0.0015 -x)^2 / (0.025 +1/2x)(0.025 + 1/2x) Square root of both sides is 0.0412 = (0.0015-x) / (0.025 + 1/2x) Solve for x and when I put in -0.001 or 1.0e-3 it says that it is incorrect, I don't know why??

    asked by Hannah
  103. READING

    In the book "The Face On the Milk Carton" where does Janie live? (I don't know where but I do know that it isn't in New Jersey) Please and Thank you.

    asked by Jessica Kaplan
  104. Chem

    The actual heat of formation of MgO is -601.8 kJ/mol. Convert this to kcal/mol and calculate your % error. And list two possible sources of procedural error to account for this percentage.

    asked by Danny
  105. advace english

    Look at the significance of chapter 5 to the novel as a whole. Focus on the relevance and effect of writer’s use of language to describe setting, character and what it shows about social and historical influences. the novel is frankenstein by mary

    asked by pratima
  106. trig

    Find the general solution for x if cos2x + sin3x = sinx

    asked by Tiana
  107. Chemistry

    What is the function of Compressed Air in GC-FID (i.e. Gas Chromatography-Flame Ionization Detector)?

    asked by anne
  108. math

    The amount of water bucket holds,if b litres of water is added to the bucket already holding 4 litres of water.what is going to be the answer in algebraic expression

    asked by Patricia
  109. math

    In a 180 kilogram sample of ore, there was 3.2% of metal. How many kilograms of metal were in the sample?

    asked by jocelyn
  110. pre-calc

    find the equation of the circles described. tangent to 2x + 3y + 13 = 0 and 2x - 3y - 1 = 0 and contains (0,4)

    asked by Kylie
  111. Chemistry

    How do I figure out how to balance 1 mole of carbonic acid with 1 mole potassium hydroxide? And balance a chemical reaction of sodium bicarbionate with hydrochloride acid?

    asked by Dd
  112. English

    I urgently need to check this paragraph. I need to revise word choice, punctuation, sentence connectors and grammar. I really hope you can help me. 1) The 18-th century novels represent the contemporary middle-class and its virtues and features; so the

    asked by Matthew
  113. English

    In the word ecologists, is eco the root morpheme or ology? Are the morphemes eco, log, y, ist, s or ec, ology, ist, s ? This is very confusing for me. Any explanation on how to find the root would be appreciated. It's easy to find roots on some words, but

    asked by Matt
  114. Physics

    A water bed has a dimension of 2m × 2m × 2m. The floor of the bed will tolerate an additional load of no more than 600N. Find the weight of the bed and determine whether it should be purchased.

    asked by Loiso
  115. Physics

    A skier starts from rest at the top of a hill that is inclined at 12.0° with the horizontal. The hillside is 180.0 m long, and the coefficient of friction between the snow and the skis is 0.0750. At the bottom of the hill, the snow is level and the

    asked by smh
  116. Calculus and vectors

    Explain how the vector C⃗(Going from the head of B⃗ to the head of A⃗) can be written in terms of vectors A⃗ and B⃗ Given the shape in this url: imgur dot com/5nT3V

    asked by Melissa
  117. geography

    1. What Argentine river has the same name as one of the states in the United States? The Colorado River 2. What landform is part of the northwest corner of Africa? mountains 3. What is the capital of Germany? Berlin 4. What natural boundary separates

    asked by Reed
  118. Physical Science

    I balanced Li(s) + Cl2(g)= LiCl(s) to 2Li(s) + Cl2(g)= 2LiCl(s) Now the question is, if you have 39.8g Li, how many moles of LiCl would you have? I am stuck on this part. Any help would be appreciated.

    asked by mel
  119. Algebra1

    the area of a wall is 15 square feet. if i can paint 180 sq inches per hour how many hour will it take me to paint the wall.

    asked by Anonymous
  120. math

    1. A.) Find the future value on $6,000 in three years if the interest is compounded semiannually at 12%. (5 points)

    asked by Anonymous
  121. Math

    log(base5)x+log(base25)x+log(base125)x=33 solve for x

    asked by Reina
  122. CHEMISTRY

    The equilibrium constant KP for the following reaction is 4 atm^2 at 300 K. AB(s) ---> A(g) + B(g) What is the equilibrium pressure of A(g) and B(g) above AB(s) at 300 K? What is KC at 300K?

    asked by Wendy
  123. health

    if you were going to leave your home and your kids put you to aged care facility how would you feel and how would you think and what would you miss the most

    asked by sarah
  124. Religion

    What can be a good picture of a modern situation of the ninth station of the cross when jesus falls the third time?

    asked by Matilda
  125. algebra 2

    the printed matter on a 10 by 16 centimeter page of a book must cover 0 square centinmeters. if all margins are to be the sme width, how wide should they be?

    asked by amanda
  126. reading

    SQR3 is a method used to: A. increase speed. B. improve comprehension. C. improve reading skills. D. both B & C.

    asked by Anonymous
  127. Algebra

    find the slope.If it is not defined state this..(0,1)(3,-3)(5,-6)(-1,3)(-3,6)

    asked by sherry
  128. Algebra

    At a local park, there is a large circular fountain feature that is 50 feet across, surrounded by a path that is 8ft wide. A father and son plan to have a “friendly” race around the path. To be fair, the father agrees to run around the outside circle

    asked by kim
  129. american history

    the articles of confederation called for wich of the folling

    asked by Anonymous
  130. algebra

    I need help. Can someone help me please. Explain how you can determine from the graph of a system of two linear equations in two variables whether it is an inconsistent system of equations. Thank you

    asked by don
  131. Composition and Communications 1

    i need to write an essay explaining how purpose, tone, audience, and content impact academic writing, and i am having trouble coming up with a good topic sentence, what are some ideas that i can use?

    asked by mrzmerced1
  132. physics

    when a force (5*10^-4) is applied on a spring then it get expand by 5*10^-2.a small mass(0.01kg) is hanged at bottm end.after coming in equilibrium a force [f(t)=20cos(wt)] is applied at the top end for oscillation.what is the distance of small(0.01) from

    asked by bhawani
  133. physics

    when a force (5*10^-4) is applied on a spring then it get expand by 5*10^-2.a small mass(0.01kg) is hanged at bottm end.after coming in equilibrium a force [f(t)=20cos(wt)] is applied at the top end for oscillation.what is the distance of small(0.01) from

    asked by bhawani
  134. calculus

    find the integral of x^2 + 1 over sqrt x from 1 to 2

    asked by Anonymous
  135. Algebra

    I need to write an equation for when the slope is 5/3 and the y-intercept is (0,-3) I got Y = 5/3x +o Cn someone verify for me please also i don't know how to find the slope of x=1

    asked by Amy
  136. English

    Writeacher, I urgently need you to check these sentences. Thank you. 1) You forgot to mention the fact that Robinson keeps himself busy by writing (keeping) a diary using the paper, pen and ink he finds on the wrecked ship. 2) He realizes his gunpowder is

    asked by Matthew
  137. English

    I left out the following sentences. Thank you very much. 1) The sense of reward and punishment followed the Puritan ethics of the middle class. (but not: the rewards and punishments followed.....) 2) Other important "themes" are time and place, which are

    asked by Matthew
  138. math

    How small tennis balls do I need to make it even on a weighing scale if all I need is only 5 kilo

    asked by sandra
  139. operating system

    The proprietor serves an average of 800 students a day, with inter-arrival times following an exponential distribution. Most students check out with very few items, but there are some that do all their grocery shopping there, which results in service times

    asked by rashmi
  140. Math help

    I need to graph the line y=-4x-3 using the slope and y intercept form how do i do this

    asked by Janine
  141. trig e-maths

    giving that cosx=4/5 and siny=12/13, find cos(x+y) when x is acute and y is obtuse angle

    asked by edward damia
  142. chemistry

    how much heat does it take to raise the temperature of 0.10 kg of gold bt 25 C?

    asked by Tawha
  143. geometry

    Find (5/8) of 1 kg, in grams.

    asked by supastarrr
  144. math

    suppose 6% of 8000 people polled regarding election expressed no opinions. how many people expressed no opinion? 0.06x8000=?

    asked by jocelyn
  145. algebra college

    multiply and simplify 3^-2-3^6

    asked by marie
  146. calculus

    Suppose R is the rectangle 1

    asked by Bryant
  147. Genetics

    The difference between fitness of a given genotype and another genotype considered optimal is called the selection coefficient (s). What is the selection coefficient for a genotype (aa) that produces an average of 99 offspring when Aa individuals produce

    asked by Anon
  148. English

    Writeacher, I urgently need you to revise the introductory part of Chapter 10 (Dr Jekyll and Mrs Hyde). Can you check tenses,please? 1) In Chapter ten Dr Jekyll comes to the realization of the primitive duality of man. He admits that man is not truly one

    asked by Matthew
  149. Calculus

    2. An object is moving along the parabola y = 3x^2. a) When it passes through the point (2, 12), its “horizontal” velocity is dx/dt= 3. What dt is its “vertical” velocity at that instant? b)If it travels in such away that dx/dt=3 for all t,then

    asked by jessica
  150. History - Italy

    What is the history of the Italian sports of soccer and football. Is Italian football the same as American soccer? If so, what is Italian soccer? Thanks for your help.

    asked by Jade
  151. Math

    Rewrite equation to solve for t: I=1.5-1.5(10^(-0.03t))

    asked by Reina
  152. Biology

    The problems of survival of animals on land are very different from those of survivial of animals in an aquatic environment. Describe four problems associated with animal survival in terrestrial environments but not in aquatic environments. For each

    asked by Neil
  153. Math

    simplify using the exponent law. express your answer using positive exponents only. (x^2)^3(2x^3)^-3/(4x)^2

    asked by Hanu
  154. Chemistry

    Which one is the LR? Ag or S? 2Ag + S → Ag2S = 216 g Ag + 32 g S

    asked by Shea
  155. Math

    How many faces vertices and edges does a cone have

    asked by Karen
  156. Lif oritation

    Wht are the check and balance that control the media?

    asked by Sibongile
  157. English

    Ms Sue, here is the second and last part, concerning Stevenson's biography. Thank you very much for helping me. 1) Robert Louis Stevenson was born in Edinburgh in 1850. He spent most of his childhood in bed because of his poor health and grew up under the

    asked by Matthew
  158. Chemistry

    1.00 g of sodium is added to a large excess of water under conditions of constant pressure (1.00 atm) and constant temperature (25 °C ). The following reaction occurs: 2Na (s) +2H2O (l)------> 2NaOH (aq) +H2(g) Delta H°rxn =-369 kJ/mol Calculate the heat

    asked by Riley
  159. PHI103

    I really need some help on these questions Please! I am having a very tough time. I have tried to answer to the best of my ability, but i am not understanding these. Can someone please help with this? Thank you. Truth tables can be used to examine

    asked by Ashley
  160. algebra 2

    a triangluar garden has an area of 189 square feet. its height os 3 feet more than ots base. find the measure of the base.

    asked by amanda
  161. phi103

    Mrs. Sue please help! I really need some help on these questions Please! I am having a very tough time. I have tried to answer to the best of my ability, but i am not understanding these. Can someone please help with this? Thank you. Truth tables can be

    asked by Ashley
  162. physics

    when a force (5*10^-4) is applied on a spring then it get expand by 5*10^-2.a small mass(0.01kg) is hanged at bottm end.after coming in equilibrium a force [f(t)=20cos(wt)] is applied at the top end for oscillation.what is the distance of small(0.01) from

    asked by bhawani
  163. physics

    when a force (5*10^-4) is applied on a spring then it get expand by 5*10^-2.a small mass(0.01kg) is hanged at bottm end.after coming in equilibrium a force [f(t)=20cos(wt)] is applied at the top end for oscillation.what is the distance of small(0.01) from

    asked by bhawani
  164. accounting

    What is the ending balance in an account that opebs with $7000, earns 7.5% interest compound quarterly, and is held for 20 years.

    asked by Yvonne
  165. precalc!!!!!

    Use long division : (a^3-b^3)/ (a-b)

    asked by ALISON
  166. english

    briefly summarizing the theory and discussing at least two of the “Seven Intelligences” that apply most closely to you, providing examples to illustrate your point.

    asked by chris
  167. Business Law

    Can someone help me with my business law project? I have to profile (interview) six legal professions. One of the people I picked my aunt who is a doctor (internist) and i have to ask her 10 legal questions about her job. How her job is related to the law.

    asked by chocolate
  168. geometry

    If 35% of an amount is 21, find the complete amount. Would it be 60?

    asked by punk480
  169. math

    If tn = n2 + 1, n ≤ 1, show the first four terms of the pattern. so far i got 2 1 0 -3. but it marked it wrong..and i don't know why

    asked by penelope
  170. literature

    Is Pride and Prejudice identified more with Romanticism or Realism? Even though it was written during the Romantic period, it seems more like Realism to me. Is this correct? Thanks!

    asked by Lydia
  171. Life orientation

    3 checks and balances that are in place south africa that control and regulate media.

    asked by Nomsa
  172. Physics

    A cell phone, when weighed in air has a weight of 5.5 newton. When completely immersed in water, however, it has a weight of 3.3 newton. Find the volume of the cell phone.

    asked by Loiso
  173. Econ

    Use diagrams of the Market for Loanable Funds and the Market for Foreign Currency to describe what would happen to the net capital outflow, the Canadian real exchange rate and net exports in each of the following scenarios: --- Instead of using diagrams it

    asked by Agent
  174. calculus

    find a vector equation of the line, which passes through the point (1,3,11) and is perpendicular to the yz-plane

    asked by kally
  175. calculus

    Find an equation(s) of the circle(s) described. Tangent to x + y = 0 and x - y - 6 = 0; center on 3x - y + 3 = 0. How do you solve this?

    asked by hfdsgds
  176. logic

    A person who is shown his or her argument commits a fallacy should run screaming from the room. argue louder. add another fallacy. revise the argument.

    asked by rosa
  177. algebra

    combine like terms 11/14a-1/15b+1/14a-11/15b

    asked by marie
  178. Human Resources

    What types of issues might indicate a need for training? From what sources would these issues be identified? If you were a training manager, how would you prioritize training needs from these sources? My position I selected was Healthcare Administration.

    asked by Kayla
  179. math

    A customer is buying a $100 drill and two $15 drill bit sets. The customer uses a gift card worth $50 to pay for a portion of their bill. How much cash will the customer pay (before taxes)?

    asked by Anonymous
  180. Math

    Rewrite equation to solve for t: I=1.5-1.5(10^(-0.03t))

    asked by Reina
  181. business law

    1. Meyer, after seeing a sign on Chosnyka's land reading "FOR SALE 95 ACRES" and running a title search, sent Chosnyka an offer to buy the land as described by its legal description. The offer required acceptance by returning a singed copy within 10 days.

    asked by nat
  182. Physics Please help!

    In each of the following cases, the mass is 7.99 kg and the radius is 7.50 cm. (a) What is the moment of inertia (kg/m2 ) of a solid cylinder rotating about an axis parallel to the symmetry axis but passing through the edge of the cylinder? (b) What is the

    asked by john
  183. Algebra

    find the slope.If it is not defined state this..(0,1)(3,-3)(5,-6)(-1,3)(-3,6)

    asked by sherry
  184. Algebra

    Your kids have asked you to set up a cable fromtheir tree house to the ground so that they can slide down quickly when it’s time to head in for lunch. The tree house is 12 feet from the ground. You determine that in order to get a gentle enough slope

    asked by kim
  185. chemistry

    What is the pH of a solution if 100.0 mL of the solution is 0.23 M with respect to acetic acid and contains 1.71 g of sodium acetate, NaCH3CO2?

    asked by Sam
  186. geometry

    Use the Pythagorean distance formula to calculate the distance between the following points on a graph: (-7,-3) (8,-11)

    asked by kim
  187. chemistry

    Balancing the equation: CuSCu + KFO2 + HBr --> CuSO4 + KBr + HCu + FBr + H2O

    asked by jill
  188. Life orientation

    Three checks and balanced that are in place in south africa that control and regulate media?

    asked by Valentine
  189. Financial Accounting

    3. How is accounts receivable turnover calculated?

    asked by Cindy
  190. Business Law

    Can someone help me with my business law project? I have to profile (interview) six legal professions. One of the people I picked my aunt who is a doctor (internist) and i have to ask her 10 legal questions about her job. How her job is related to the law.

    asked by chocolate
  191. math

    i have a few problems can you check? 1. which number is 1.92509 rounded to the nearest ten - thousandths? a 1.9251 b. 1.9250 c. 1.93000 d. 1.90000 i picked a. 1.9251 #6 which of the following is in order from least to greatest? f. -9, -5, 0, |-2| g. |-5|,

    asked by marko
  192. writing

    what is the correct punctuation for this sentence: It is cold here

    asked by Anonymous
  193. orchestra

    ean fortidd

    asked by karissa
  194. algebra

    f(x)=x+19

    asked by coco
  195. algebra

    given the function k described by k(x)=x+20 find each of the following k(0)= k(-12)= k(-9)= k(15)= k(y+1)=

    asked by coco
  196. math

    Consider the 2008 Democratic / Republican primaries and discuss how the nominating process might have proceeded through the campaign if the concept of "approval voting" had been used to deceide primary winners?

    asked by trish
  197. Math

    I am confuse how do you divided 60 into4,356 please help!

    asked by Kayla
  198. History

    Name 5 black or irish people who contirbuted to society in the 1950s

    asked by lil
  199. adding fractions

    what does one half plus one third equal?

    asked by dylan
  200. Math(Please check)

    2.5 X 10^(-3) = (.28)(.38) / x^2 Solve for x. 2.5 X 10^(-3) = 0.1064 / x^2 2.5 X 10^(-3) X 0.1064 = 266 sqrt 266 = 16.3 Did I do this correctly?? Thank you for your help.

    asked by Hannah
  201. Algebra 2

    Okay so I need help with basically how to find the domain, range, and how to solve if it says Find the value of f(3). Let the f function be defined by f(x) = the square root of x + 1 for -1 is less than or equal to x less than or equal to 3. And 4 - x for

    asked by Kendra
  202. world history

    what is another catchy name for the storming of the Bastille? please help me thank you

    asked by joseph
  203. algebra

    1. Rodney can pick 2 rows of string beans in 1 hour and 24 minutes. At this rate, how long will it take him to pick 7 rows of beans? 2. The formula for finding the perimeter of a rectangle is P=21+2w. Which equation solves for w in terms of l and P?

    asked by Yaya
  204. Earth/Space Science

    Why are icebergs in shipping lanes so hazardous?

    asked by Astrid
  205. English

    Ms. Sue, as Writeacher is not there, I'd like you to check if everything is OK in this rephrase I need to prepare for tomorrow. (Use of tenses) 1) In Chapter ten Dr Jekyll comes to the realization of the primitive duality of man. He admits that man is not

    asked by Matthew
  206. English

    Fill in the blank. English is an important language for international __________.

    asked by noorie
  207. Economics

    If one kilogram of flour costs $2 in Canada, and 100 shillings in Kenya, what would Purchasing Power Parity predict the Kenyan shilling to be worth in Canadian dollars

    asked by Agent
  208. Ms.Sue

    MsSue can you give me a general analysis of what Kalamazoo Poverty Reduction Initiative is about and how they're beneficial. I've read the site and not comprehending it.

    asked by help
  209. chemistry

    v=555mL at 1.00 atm. what is the volume at 689 torr?

    asked by Anonymous
  210. english

    the passage makes it clear that aunt georgiana??

    asked by selena