Most popular questions and responses by amanda
  1. Health HELP ME!!

    Since 1964 the number of cigarettes smoked has A. Increased dramatically. B. Decreased to the near zero.•• C. Remained steady. D. Declined steadily. Correct me if I'm wrong.

    asked on January 6, 2016
  2. Science

    The number of moles of H2O produced in reaction of 50ml 1.0 M HCl and 50mL 1.0 M Naoh

    asked on June 24, 2008
  3. Physics

    Glycerin is poured into an open U-shaped tube until the height in both sides is 20 {\rm cm}. Ethyl alcohol is then poured into one arm until the height of the alcohol column is 20 {\rm cm}. The two liquids do not mix. What is the difference in height

    asked on December 7, 2012
  4. chemistry

    Sodium metal and water reacts to form hydrogen and sodium hydroxide. If 5.98g of sodium react with water to form .26g of hydrogen and 10.40g of sodium hydroxide, what mass of water was consumed in the reaction?

    asked on July 7, 2010
  5. Biology

    Has anyone done the effect of cell size on material transport portfolio in Connections academy?

    asked on October 28, 2016
  6. Math

    Which ratio is equivalent to 4/16 A. 2:4•• B. 6 to 20 C. 8:32 D. 12 to 64 Write the ratio as a unit rate. 286 miles in 5 1/2 hours A. 36 miles per hour B. 52 miles per hour •• C. 57.2 miles per hour D. 114.4 miles per hour Which typing time is the

    asked on January 12, 2016
  7. English

    choices...curtail,devastate,digress,incentive,incorporate,indispensable,intermittent,rigor,squander,succumb here is the sentences: 1,2:Duane feels he ____(e)d too many years in inactivity, so now he welcomes the _______s of an exercise program. 3,4. The

    asked on February 18, 2013
  8. chem

    Write the complete ionic equation for Cu(NO3(aq)+K2S(aq)and namd write the formula for the spectator ions in this reaction? This is what I got pls. check it: complete ionic equation: Cu^19aq)+K^1(aq)+S^-2(aq)=K^1(aq)+NO3^-1(aq)+Cu2S(s) net ionic equation:

    asked on October 5, 2012
  9. Health

    What is a doctor’s responsibility if a patient requests restrictions on the use of his or her PHI? A. The doctor must comply with the patient’s wishes. B. The doctor need not comply with the patient’s wishes if HIPAA would otherwise permit

    asked on April 22, 2009
  10. Programming

    Write a program (pseudocode) that would calculate and display the results for the multiplication table for values ranging from 1 to 100. This what I have so far: Declare X, Y, Z As Integer Write “10 x 10 Multiplication Table” For (X = 1; X

    asked on March 11, 2012
  11. physics

    A 53.5 N object is in free fall. What is the magnitude of the net force which acts on the object? Answer in units of N What is the magnitude of the net force when the object encounters 15.4 N of air resistance? Answer in units of N What is the magnitude of

    asked on October 20, 2011
  12. physics

    Tammy leaves the office, drives 43 km due north, then turns onto a second highway and continues in a direction of 30◦ north of east for 80 km. What is her total displacement from the office? and At what angle is her displacement? (Consider east to be

    asked on September 3, 2012
  13. english

    write a review of a performance . the performance can be either a production or a film

    asked on January 12, 2010
  14. chemistry

    how do you know which halide salts confirms a presence of F- ions, Cl- ions, Br- ions, and I- ions?

    asked on February 4, 2008
  15. Language Art

    which sentence uses the verb eat in the past perfect tense? A) Sheila ate her lunch in the cafeteria B) they eat lunch together every day C) Douglas has eaten all the potato chips D)The twin had eaten pizza before they arrived••

    asked on January 11, 2016
  16. Math

    Which ratio is equivalent to 3/7? A. 6 to 10 B. 9:21 •• C. 12/35 D. 7 to 3

    asked on January 12, 2016
  17. Math

    1. Garret is 64 inches tall. How many centimeters tall is he? Round your answer to the nearest tenth of a centimeter. 1 in. = 2.54 cm A. 25. 2 cm B. 162.6 cm •• C. 156.8 cm D. 86.4 cm 2. A jug of milk holds 4 quarts. How many liter of milk does the jug

    asked on January 12, 2016
  18. chemistry

    write the overall, balanced molecular equation and indicate which element is oxidized and which id reduced for the following reactions. Include phase abbreviations. a) Mg(s)+Cr(C2H3O2)3(aq)--->? b) Cd(s)+AgNO3(ag)---->?

    asked on June 12, 2010
  19. physics

    a 500 N person stands on a uniform board of weight 100 N and length 8 m. the board is supported at each end. if the support force at the right end is three times that at the left end, how far from the right end is the person? please explain

    asked on January 4, 2009
  20. algebra 1

    Soda is on sale for $0.75 a can, and you have a coupon for $0.50 off your total purchase. write a function rule for the cost of n sodas, how much would 10 sodas cost? A.C(n)=0.5n-0.75;$4.25 B. C(n)=0.75n-0.5;$7.00** C C(n)0.5n-0.5;$4.50 D C(n)=0.75n;$7.50

    asked on December 19, 2017
  21. Calculus

    A man 5.50 ft tall approaches a street light 18.0 ft above the ground at a rate of 4.0 ft/s. at what rate is the end of the man's shadow moving when he is 9.0 ft from the base of the light?

    asked on August 27, 2011
  22. Physics

    An object is being acted upon by three forces and moves with a constant velocity. One force is 60N along the x-axis, the second force is 75N along a direction making a counterclockwise angle of 150 degrees with the x-axis. What is the direction of the

    asked on October 6, 2010
  23. Physics

    The intensity due to a number of indipendent sound sources is the sum of the individual intensities. A) When four quadruplets cry simultaneously, how many decibels greater is the sound intensity level than when a single one cries? B) To increase the sound

    asked on March 29, 2008
  24. English 3

    Choose the correct relative pronoun in the sentence: (answer I think is correct) Mrs. Eggelson tells _____ will listen about her health problems. whoever (whomever) The children argued about the actor _____ should receive the award. (who) whom Few people

    asked on August 27, 2015
  25. chemistry

    A 20 gram piece of metal is added to a sample of 100 grams of water inside a calorimeter. If the metal is at a temperature of 125° Celsius and the water is at 20° Celsius, which of the following best describes what will occur inside the calorimeter?

    asked on July 29, 2011
  26. chemistry

    A 27.00 mL sample of an unknown H3PO4 solution is titrated with a 0.110 M NaOH solution. The equivalence point is reached when 25.78 mL of NaOH solution is added. What is the concentration of the unknown H3PO4 solution? The neutralization reaction is:

    asked on September 27, 2012
  27. Chemistry

    The complete combustion of 1.283g of cinnamaldeyde (C9H8O, one of the compounds in cinnamon) in a bomb calorimeter (Ccalorimeter=3.841 kJ/C) produced an increase in temperature of 130.32 C. Calculate the molar enthalpy of combustion of cinnamaldehydy

    asked on October 15, 2012
  28. english

    at the end of chapter IV, Frankenstein pauses to moralize. What does he say about passion and how a person should deal with it?

    asked on December 1, 2010
  29. AP Physics

    The volume of liquid flowing per second is called the volume flow rate "Q" and has the dimensions of [L]^3/[T]. The flow rate of a liquid through a hypodermic needle during an injection can be estimated with the following equation. Q = pi * R^n (P2 - P1) /

    asked on September 8, 2012
  30. Physics

    A football player, starting from rest at the line of scrimmage, accelerates along a straight line for a time of 1.5 s. Then, during a negligible amount of time, he changes the magnitude of his acceleration to a value of 1.4 m/s2. With this acceleration, he

    asked on September 26, 2010
  31. Math

    Suppose a baseball player had 211 hits in a season. In the given probability distribution, the random variable X represents the number of hits the player obtained in the game. x P(x) 0 0.1879 1 0.4106 2 0.2157 3 0.1174 4 0.0624 5 0.0060 a.) Compute and

    asked on November 26, 2013
  32. Health

    Which one of the following factors would be considered de-identified information? A. Patient name: Charles Logan B. Patient policy number: 65388296531 C. Social Security Number: 555-55-5555 D. Patient condition: improved breathing with new medication I've

    asked on April 22, 2009
  33. chemistry

    A buffer is made by dissolving HC2H3O2 and NaC2H3O2 in water. Write an equation that shows how this buffer neutralizes added acid. Express your answer as a chemical equation. Identify all of the phases in the answer.

    asked on December 3, 2012
  34. Chemistry

    Okay so I kinda understand where to put the numbers into the formula but i'm not sure how to calculate the distance so could someone kindly walk me through the problem so i can understand it. Thank you so much. Calculate the amount of energy required for

    asked on November 3, 2011
  35. Physics

    a novice pilot sets a plane's controls, thinking the plane will fly at 2.5X10^2 km/h to the north. if the wind blows at 75 km/h toward the southeast, what is the planes's resultant velocity?

    asked on September 5, 2011
  36. Math

    a bus company has 4000 passengers daily, each paying a fare of $2. for each $0.15 increase, the company estimates that it will lose 40 passengers per day. if the company needs to take in 10 450$ per day to stay in business, what fare should be charged?

    asked on February 16, 2009
  37. Math

    Write the ratio as a unit rate. 8 meters in 10 seconds A. 0.8 meter per second B. 1.125 meters per second C. 2 meters per second•• D. 80 meters per second

    asked on January 12, 2016
  38. chemistry

    Aluminum nitrate and ammonium chloride react to form alluminum chloride, nitrogen, and water. what mass of aluminum chloride is present after 43.0 g of aluminum nitrate and 43.0 g ammonium chloride have reacted completely? Please Help

    asked on May 20, 2010
  39. Statistics

    12) Allergic reactions to poison ivy can be miserable. Plant oils cause the reaction. Researchers at the Allergy Institute did a study to determine the effects of washing the oil off within 5 minutes of exposure. A random sample of 1000 people with known

    asked on October 24, 2013
  40. Chemistry (Thermodynamics)

    Write a balanced equation for the complete combustion of 1 mole of ethyne gas (C2H2) ?

    asked on February 27, 2014
  41. Geometry/Math

    Two right circular cylinders have equal volume. The first cylinder has a radius of 6 inches and a height of 12 inches. What is the number of inches in the height of the second cylinder if its radius is 8 inches? Express your answer as a common fraction,

    asked on May 13, 2015
  42. Economics

    5. (Ch. 17 # 5) Sparkle is one firm of many in the market for toothpaste, which is in long-run equilibrium. a. Draw a diagram showing Sparkle’s demand curve, marginal revenue curve, average cost curve, and marginal cost curve. Label Sparkle’s

    asked on April 8, 2007
  43. Art

    What is the best way to fully understand genre of art Critique two examples of art from genre Evaluate it based on criteria for another genre of art Research its history, development and characteristic style•• Study art from the same time period

    asked on January 11, 2016
  44. English

    Here is my choices...curtail,devastate,digress,inceantive,incorporate,indispensable,intermittent,rigor,squander,succumb here is the sentences: 1,2:Duane feels he ____(e)d too many years in inactivity,so now he welcomes the _______s of an exercise program.

    asked on February 16, 2013
  45. Physics

    At a playground, a 22kg child plays on a slide that drops through a height of 2.1m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -371J on the child. What is the child's speed at the bottom of

    asked on November 11, 2015
  46. Pre-Calculus

    A rectangle is bounded by the x-axis and the semicircle y = √36 – x2, as shown in the figure below. Write the area A of the rectangle as a function of x, and determine the domain of the area function. A = all real numbers except x = 36 all real numbers

    asked on October 2, 2011
  47. Math

    Which typing time is the fastest? 220 words in 8minutes 600 words in 12 minutes •• 350 words in 10 minutes 225 words in 5 minutes

    asked on January 12, 2016
  48. Chemistry

    Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics in human. The value of deltaHcombustion for dimethylphthalate (C10H10O4) is 4685 kJ/mol. Assume 1.035 g of dimethylphthalate is combusted in a calorimeter

    asked on October 15, 2012
  49. Chemistry

    3NO2 + H2O -> 2HNO3 + NO Calculate the percent yield for the following reaction if 76.8 g of H2O reacted and 125 g of NO were produced.

    asked on November 25, 2014
  50. chemistry

    A solution contains an unknown amount of dissolved magnesium (Mg 2+). Addition of 5.50×10^−2 mol of Na2CO3 causes complete precipitation of all of the magnesium. what mass of the magnesium was dissolved in the solution? answer in unit g.

    asked on October 11, 2010
  51. Physics

    A railroad car with a mass of 12000 kg collides and couples with a second car of mass 18000 kg that is initially at rest. The first car is moving with a speed of 9 m/s before collision. If external forces can be ignored, what is the final speed of the two

    asked on March 24, 2014
  52. math

    How many ways are there to move from one corner of a cube to the diagonally opposite corner, in three moves, each of which travels along one edge of the cube?

    asked on May 20, 2015
  53. Chemistry

    Calculate how much acetylene (C2H2) can be produced from 358 g of H2O and an excess of CaC2 if the percent yield for this reaction is 94.5%. CaC2 + 2H2O -> C2H2 + Ca(OH)2

    asked on November 25, 2014
  54. Physics

    At the beginning of a new school term, a student moves a box of books by attaching a rope to the box and pulling with a force of F = 84.4 N at an angle of 64degrees. The acceleration of gravity is 9.8 m/s/s. The box of books has a mass of 14 kg and the

    asked on October 30, 2011
  55. chemistry

    Acetylene gas, c2h2, burns in oxygen to produce carbon dioxide and water. If 61.4 g of co2 are produced when 22.7g c2h2 react with sufficient oxygen, what is the percent yield for the reaction?

    asked on October 14, 2011
  56. Math

    5 letters are typed, with repetition allowed. What is the probability that all 5 will be vowels? Write your answer as a percent. Round to the nearest hundredth of a percent as needed

    asked on November 19, 2018
  57. chemistry

    Use Equation 7.1 and assuming that core electrons contribute 1.00 and valence electrons contribute nothing to the screening constant, S, calculate Zeff} for these two ions. Express your answers as integers. Enter your answers numerically separated by a

    asked on October 31, 2011
  58. Statistics

    12) Allergic reactions to poison ivy can be miserable. Plant oils cause the reaction. Researchers at the Allergy Institute did a study to determine the effects of washing the oil off within 5 minutes of exposure. A random sample of 1000 people with known

    asked on October 24, 2013
  59. Phosphorus cycle

    Explain how the phosphorus cycle differs from the carbon cycle. The phosphorus cycle differs from the carbon cycle by the phosphorus being an essential element in molecules which carries energy to plant and animal cells. The phosphorus helps plants with

    asked on July 6, 2010
  60. Math

    Find the effective rate corresponding to the given nominal rate. (Round your answer to the nearest hundredth of a percentage point.) (a) 4%/year, compounded quarterly ? % (b) 3%/year, compounded monthly ? %

    asked on November 23, 2012
  61. Chemistry

    How do you prepare a 0.4 M soultion of copper sulfate in water starting with solid copper sulfate and water?

    asked on March 25, 2012
  62. Math

    2. A 21 meter tall tree near a building casts a shadow that is 24 meters long. The building casts a shadow that is 56 meters long. what is the height of the building? 21/24 = x/56 x = 56*21/24 = 49 m..........c -------------------------- a. 30m •• b.

    asked on January 13, 2016
  63. Physics

    An old car is traveling down a long, straight, dry road at 25.0 m/s when the driver slams on the brakes, locking the wheels. The car comes to a complete stop after sliding 305 m in a straight line. If the car has a mass of 755 kg, what is the coefficient

    asked on March 8, 2011
  64. biology

    create a mnemonic for the 6 kingdoms they maybe in any order but you must have all 6

    asked on September 24, 2009
  65. Language

    Which statement describes someone who is formidable ? The principal smiled warmly as he welcome the new student The doctor told the boys father that the illness was not serious The woman towered above the small boy and spoke sternly•• The boys father

    asked on January 11, 2016
  66. Language Arts

    A community center has announced that it will close next month which of the following types of writing could you use most effectively to try to change the situation? A) A letter to the editor urging newspaper readers to come to a "save the center"

    asked on January 11, 2016
  67. statistics

    A personality test is administered to a large group of subjects. Five scores are shown below, in original units and in standard units. Fill in the blanks. 79 64 52 72 _ 1.8 .8 _ _ -1.4

    asked on September 11, 2008
  68. Physics

    A 20 g mass is attached to a 120 cm long string. The tension in the string is measured to be .200N. What is the angle. l\ l \ l \ l \ l o l Sorry crappy picture, but the circle is the mass and the diagonal lines represent the string the mass is attached

    asked on October 6, 2010
  69. Math Check Answers

    Write a rule for the function represented by the table. x y 0 13 1 28 2 43 3 58 y= 15 + 13x y= 14 + 12x y= 13 + 15x** y= 12 + 14x Which function rule would help you find the values in the table? j k 2 -12 4 -24 6 -36 8 -48 k= -12j k= -6j** k= j - 12 k= j -

    asked on October 24, 2016
  70. Physics

    you slide a 325-N trunk up a 20.0 degree incline plane with a constant velocity by exerting a force of 211 N parallel to the incline plane a)what is the component of the trunk's weight parallel to the plane ? b)what is the sum of your applied force

    asked on October 19, 2009
  71. ancient egypt

    What substance was used to stuff the nostrils?

    asked on December 10, 2008
  72. Social Studies

    HELP MS. SUE!!! 1. Nearly every village in mexico has a church and a market. The city's public square where the market is held is called a a. quatro b. plaza c. casa. d. squatter.** 2. To what country does Mexico export the most goods? a. Germany b. Canada

    asked on April 3, 2015
  73. Chemistry

    A sample of sandstone consists of silica, SiO2, and calcite, CaCO3. When the sandstone is heated, calcium carbonate, CaCO3, decomposes into calcium oxide, CaO, and carbon dioxide. CaCO3(s) → CaO(s) + CO2(g) What is the percentage of silica in the

    asked on September 29, 2009
  74. math

    triangle abc is reflected over the y-axis. What are the coordinates of the reflected triangle? Describe in words what happens to the x-coordinates and y-coordinates of the original triangle's vertices as a result of this reflection? I can't figure out how

    asked on March 15, 2016
  75. physics

    The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of 4.6 m/s, what is the largest value that the radius r can have if the car is to remain in contact with the circular track at all times

    asked on March 9, 2011
  76. Physics

    swimming duck paddles the water with it's feet once every 1.6s, producing surface waves with this perios. The duck is moving with constant speed in a pond where the speed of the surface waves is 0.32m/s and the crests of the waves are 0.12m apart. A) What

    asked on March 29, 2008
  77. Art

    Which of the following most influenced the art of tessellation Language Arts Social Studies Science Mathematics••

    asked on January 11, 2016
  78. Math

    1. Explain the advantages and disadvantages of both the substitution method and the elimination method for solving a system. Help please. The only reasons I can think of is because in substitution it might be more difficult cause there's a possibility of

    asked on February 18, 2008
  79. Chemistry

    Ammonia, NH3, reacts with Phosphoric acid to produce Ammonium hydrogenphosphate, (NH4)2HPO4. What mass (in grams) of ammonia will react with 2.800E3 kg of Phosphoric acid?

    asked on October 27, 2014
  80. Chemistry

    a 25.0mL sample of a 0.100M solution of aqueous trimethylamine is titrated with a 0.125M solution of HCl. Calculate the pH of the solution after 10.0, 20.0, and 30.0 mL of acid have been added; pKb of (ch3)3N=4.19

    asked on November 8, 2010
  81. geometry

    in the diagram below of triangle TEM, medians line TB, line EC and line MA intersect at D, and TB = 9. Find the length of TD.

    asked on May 15, 2012
  82. algebra 1

    Suppose that the function f(x)=6x+4 represents the number of cars that drive by in x minutes. how many cars will drive by in 10 minutes? A. 60 B. 100** C.46 D.64

    asked on December 19, 2017
  83. Math

    Write an inequality to model The situation the number n of the people who attended the game was at least 50 A. N > 50 B. N < 50•• C. None of the above

    asked on January 12, 2016
  84. Chemistry

    According to the following reaction, how much energy is evolved during the reaction of 32.5g B2H6 and 72.5g Cl2? The molar mass of B2H6 is 27.67g/mol. B2H6(g)+6Cl2(g)----->2BCl3(g)+HCl(g) Delta H reaction=-1396

    asked on April 2, 2012
  85. Math Check Answers

    Write a rule for the sequence 8 -1 -10 -19... Start with 8 and add -9 repeatedly** Start with-9 and add 8 repeatedly Start with 8 and add 9 repeatedly Start with 8 and subtract -9 repeatedly Find the next three terms of the sequence. -4 -8 -16 -32... -96

    asked on October 24, 2016
  86. Macroeconomics

    Cannot attach graph! a. If the actual price level exceeds the expected price level reflected in long-term contracts, real GDP equals _______ and the actual price level equals _______ in the short run. b. The situation described in part (a) results in a(n)

    asked on October 24, 2012
  87. Algebra

    The markup over dealer's cost of a new car ranges from 18% to 24%. If the sticker price is $14000 over what range will the dealer's cost vary?

    asked on September 18, 2011
  88. U.S history

    Which of he following was an effect of the Missouri compromise ? A. Western Territories could only enter the union if they permitted slavery B. There were more senators in Congress from Free states then slave states C. Missouri enter the union as a slave

    asked on December 6, 2017
  89. 10th grade geo

    answers to objective 3-c algebra with pizzazz

    asked on November 15, 2010

    SOME ONE PLEAS HELPPPP MEEE The breaking down or disintegration of substances such as rocks and minerals by physical, chemical, or biological processes is called- * 1 point A Erosion C Climate D Deposition 2. When particles carried by water, ice, or wind

    asked on January 10, 2018
  91. AP Chem

    Predict whether the equilibria I) CO(g) + H2O(g) ⇀↽ CO2(g) + H2(g), ∆H ◦ = −41 kJ II) X2(g) ⇀↽ 2 X(g), where X is a halogen will shift toward products or reactants with a temperature increase.

    asked on January 31, 2014
  92. Chemistry

    Please write the balanced chemical equation for reaction the following chemical reaction ozone gas, O3, reacts with 3,3,4,4,5,5-hexanmethyl-1-hexyne, H-C≡C-C(CH3)2-C(CH3)2-C(CH3)2-CH3 to produce carbon dioxide gas, CO2 , and water gas, H2O When balancing

    asked on November 8, 2012
  93. Chemistry

    Calculate the pH of 1.00L of a buffer that is 0.120M HNO2 and 0.150M NaNO2 before and after the addition of 1.00mL of 12.0M HCl

    asked on November 8, 2010
  94. History

    How did Belgium rule in Rwanda contribute to genocide? A. Belgium King Nicholas I ordered his army to execute Tutsis throughout Rwanda. B. Belgium administrators created a two-class system that led to the mass killing of Hutus. C. Belgium favoritism toward

    asked on February 16, 2019
  95. Chemistry

    A 247 lb fullback runs the 40 yd dash at a speed of 17.09 ± 0.1 mi/h. (a) What is his de Broglie wavelength (in meters)? (b) What is the uncertainty in his position? ** I found part A but I am unsure how to use this information to get part B. Any help is

    asked on March 11, 2014
  96. Physics

    A 10kg mass is suspended as shown: i.gyazo[dotcom]/47dc49d5ec1eebe950472dba5f692e70.png (remove the brackets) What is the tension in the cord between points A and B? What is the tension in all of the cords? Thanks for the help, I just can't figure it

    asked on November 11, 2015
  97. Physics

    A child sits on the edge of a spinning merry-go-round that has a radius of 1.5 m. The childs speed is 2 m/s. What is the Child's acceleration?

    asked on June 14, 2011
  98. Chemistry

    Please help me with the following question: Consider the following ion; XF2-2 What is the oxidation number assigned to element “X”? Show your work I'm having trouble writing the steps.

    asked on June 17, 2011
  99. Trig

    Find all angles θ between 0° and 180° satisfying the given equation. (Enter your answers as a comma-separated list. Round your answers to one decimal place.) Sin θ = 1/4

    asked on November 9, 2015
  100. Physics

    Please show how you got the answers, not just the answers. A 40.0 N force stretches a vertical spring 0.250 m. (A) What mass must be suspended from the spring so that the system will oscillate with a period of 1.0 s? (B) If the amplitude of the motion is

    asked on July 14, 2010


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