cc

Most popular questions and responses by cc
  1. chemistry

    The molarity of urea in a solution prepared by dissolving 16 g of urea (MW 60.0g/mol) in 39 g of H2O is ______M. The density of the solution is 1.3 g/ml.

    asked on March 9, 2010
  2. Business Statistics

    John & Jane are married. The probability that John watches a certain television show is .4. The probability that Jane watches the show is .5. The probability that John watches the show, given that Jane does, is .7. 1) find probability that both John & Jane

    asked on June 21, 2011
  3. chemistry

    A solution is prepared by dissolving 15.0 g of NH3 in 250.g of water. The density of the resulting solution is 0.974 g/ml. The mole fraction of NH3 in the solution is?

    asked on March 5, 2010
  4. HELP!

    Name and explain 3 problems of the Articles of Confederation. What is this question mean? and someone please give me some good site. i learned that last year the articles of confederation were one of the first governments after the revolution name three

    asked on October 19, 2006
  5. HELP!

    What caused states to demand a constitutional Convention and explain why? What three issues caused the most conflict during the Constitutional Convention and why? How did the COnstitutional delegates solve these problems? Plese tell me good site and teach

    asked on October 19, 2006
  6. economics

    How do you think the Demand and Supply patterns have changed in the United states since 2008 when the recession started?

    asked on June 12, 2016
  7. Calc

    A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.3 cm/min. At what rate is the volume of the snowball decreasing when the diameter is 13 cm. (Note the answer is a positive number).

    asked on November 20, 2015
  8. Math

    Tony broke a larger array into 2 x 9 array and a 4 x 9 array. What did the larger array look like? Draw picture. Write a number sentence to show the relationship between the large array and the two smaller arrays.

    asked on November 29, 2016
  9. economics

    According to the “guns and butter” example, if a country decides to spend more on military goods, which of the following will happen?

    asked on January 11, 2010
  10. Math

    Carolina runs 3 1/2 miles in 22 1/4 Minutes. how many miles does she run per minute A.) 3/22 mike per minute B.) 62/221 mile per minute C.) 14/89 mike per minute D.) 4/39 mike per minute

    asked on November 14, 2017
  11. Physics Part 1

    Rick is playing billiards and hits the cue ball. It makes contact with the 8 ball head on. If before the collision the cue ball was travelling at 2.4 m/s and after the collision the 8 ball was traveling at 2.13 m/s. How fast and in what direction is the

    asked on November 9, 2013
  12. math

    ms sue will you help me if my coordinates are A o,4 B 4,4 C 2,0 D 0,0 THE DILATION IS A' 0,2 B' 2,2 C' 2,0 D' 0,0 what is the scale factor?

    asked on November 7, 2018
  13. government

    What caused states to demand a constitutional Convention and explain why? What three issues caused the most conflict during the Constitutional Convention and why? How did the COnstitutional delegates solve these problems? Please tell me how to answer the

    asked on October 19, 2006
  14. chemistry

    A 0.750 g sample of an unknown substance is dissolved in 20.0 g of benzene, C6H6. The freezing point of the solution is 4.53 oC. Calculate the molar mass of the substance. The normal freezing point for benzene is 5.53 oC and Kf is 5.12 oC/m.

    asked on February 9, 2010
  15. chemistry

    A 0.750 g sample of an unknown substance is dissolved in 20.0 g of benzene, C6H6. The freezing point of the solution is 4.53 oC. Calculate the molar mass of the substance. The normal freezing point for benzene is 5.53 oC and Kf is 5.12 oC/m.

    asked on February 9, 2010
  16. Help!!

    What caused states to demand a constitutional Convention and explain why? What three issues caused the most conflict during the Constitutional Convention and why? How did the COnstitutional delegates solve these problems? Plese tell me good site and teach

    asked on October 19, 2006
  17. Math

    A plumb bob is a weight hung at the end of a string, called a plumb line. The weight pulls the string down so that the plumb line is perfectly vertical. Suppose that the angle formed by the wall and the roof is 123° and the angle formed by the plumb line

    asked on August 30, 2016
  18. History

    How do i answer this question using the race method? you will discuss the ways in which the United States fought the Cold War economically, socially, and politically and which methods you believe were the most effective in combating communism.

    asked on February 28, 2018
  19. Algebra

    I'm needing help with this. Thanks An individual can be classified by gender as male, female, by hair color as black, blonde, brown, red, unknown, and by eye color as black, brown, green. A) How many different classifications are possible (for example,

    asked on February 1, 2011
  20. english

    4. Which of the following sentences contains “passive voice?” (Points : 1) The airplane was wrecked by the wind. The wind wrecked the airplane. The cat chased the mouse. The bird flew after the balloon. a, b, c

    asked on October 24, 2010
  21. 5th grade math

    how do i convert milligrams to grams- i am in fifth grade-easiest way please.

    asked on March 28, 2013
  22. Legal and Ethical Aspects of Health Information

    Describe the theories that could support a lawsuit under these circumstances: A surgeon performs elective surgery on a patient. The patient later complains to the surgeon about the pains resulting from the surgery. The surgeon dismisses his complaints an

    asked on May 8, 2010
  23. CHM

    From the following: 1) pure water 2) 0.01 m solution of table sugar (C12H22O11) 3) 0.01 m solution of NaCl 4) 0.01 m solution of CaCl2 Choose the one with the largest van't Hoff factor and hence the lowest freezing point.

    asked on February 9, 2010
  24. chemistry

    Three solutions are mixed together to form a single solution. One contains 0.2 mol \rm mol Pb(CH 3 COO) 2 \rm Pb(CH_3COO)_2, the second contains 0.1 mol \rm mol Na 2 S \rm Na_2S, and the third contains 0.1 mol \rm mol CaCl 2 \rm CaCl_2. Write the

    asked on October 19, 2013
  25. biology

    Aquatic organisms: A. have a waxy coating to prevent water loss B. may experience problems with water balance C. typically have a plentiful supply of nitrogen. D. never find light to be in short supply

    asked on October 9, 2014
  26. chemistry

    an air bubble is released at the bottom of a lake where the temperature is 4 celsius and the pressure is 3.40 atm. if the bubble was 10.0 ml to start, what well its volume be at the surface, where the water temperature is 12 celsius and the pressure is 103

    asked on April 12, 2010
  27. HELP!

    What caused states to demand a constitutional Convention and explain why? What three issues caused the most conflict during the Constitutional Convention and why? How did the COnstitutional delegates solve these problems? Plese tell me good site and teach

    asked on October 19, 2006
  28. Chemistry

    From the following: 1) pure water 2) 0.01 m solution of table sugar (C12H22O11) 3) 0.01 m solution of NaCl 4) 0.01 m solution of CaCl2 Choose the one with the largest van't Hoff factor and hence the lowest freezing point.

    asked on February 9, 2010
  29. chemistry

    According to the following chemical equation: N2 + 3H2 → 2NH3 How many grams of hydrogen are needed to completely react with 28.0 grams of nitrogen?

    asked on July 12, 2017
  30. Math

    I need help. Name a pair of vertical angle.

    asked on February 7, 2019
  31. chemistry

    at what temperature does 16.3 g of nitrogen gas have a pressure of 1.25 atm in a 25.0 - L tank?

    asked on April 12, 2010
  32. random

    what kind of website is this? what is jiskha? Jiskha is the name given to the site by the man who runs the show here. His name is Leo. This is a help site with the emphasis on help. We try to help students do their homework. But we like to see what the

    asked on January 18, 2007
  33. math

    RAMON PLANTED 3 ROWS OF SEEDS. EACH ROW HAD 8 SEEDS. THE SEEDS WERE 42 INCHES LONG. HOW FAR APART SHOULD HE PLANT THE SEEDS?

    asked on October 18, 2011
  34. Chemistry

    What is the molality of a solution prepared by dissolving 2.00 mL of bromine (d = 3.103 g/mL) in 125 mL acelic acid, HC2H3O2 (d = 1.05 g/mL) Choose one answer. a. 0.301 b. 0.335 c. 0.296 d. 0.593

    asked on February 10, 2010
  35. Math

    Sue has 8. Piece of sting each measure 6,5. How many inches of sting left

    asked on November 27, 2018
  36. science/physics

    If a pendulum is not pushed, why does it not go as big when it swings back. Where does the lost PE go? ans. Since there is no force applied to the pendulum there is not enough Kinetic energy (energy of motion) to transform into potential energy to make it

    asked on February 9, 2014
  37. Physics

    The driver in a car of total mass 800kg and which is travelling at 20m / s suddenly observes a stationary dog in his path 50m ahead . if the car brakes can exert a force of 2000N, what will likely happen

    asked on June 21, 2017
  38. Algebra

    The revenue in dollars from a school play is given by the expression 5x+2y, where x is the of adult tickets sold and y is the number of student tickets sold. If the revenue is $220, find the x- and y- intercepts and explain what they represent in the

    asked on September 3, 2015
  39. Physics Part 2

    Rick's next shot isn't as good. She hits the cue ball with a velocity of 5.6 m/s and it hits the 4 ball. The cue ball bounces off at a 45 degree angle off it's original path at a speed of 3.5 m/s. What is the velocity of the 4 ball? ---So all i know is the

    asked on November 10, 2013
  40. Chemistry

    Calculate the molality of methanol in a solution prepared by dissolving 75.0 mL of methanol, CH3OH (d = 0.791 g/mL), in 150 g of ethanol, C2H5OH.

    asked on February 10, 2010
  41. government

    what three issues caused the most conflict during the constitutional convention? Wheather to keep the Articles of Confederation or generate a completly new document, states rights and, Individual rights. Acording to the Word book Encyclopedia, Circa 1977.

    asked on October 25, 2006
  42. math

    . A box contains five blue, eight green, and three yellow marbles. If a marble is selected at random, what is the probability that it is not blue?

    asked on June 9, 2011
  43. Chem

    A mixture is prepared with [CO] = 0.035, [Cl2] = 0.015, and [COCl2] = 0.95. It is known that Kc for the equilibrium is 1.2 x 10-3 at 400OC. Predict what will happen. Choose one answer. a. The reaction is at equilibrium so no net reaction occurs. b. The

    asked on March 22, 2010
  44. Algebra 2

    The height h(t), in feet, of an airborne tee-shirt t seconds after begin launch can be approximated by h(t)= -15t^2+120t+10,0

    asked on October 18, 2012
  45. Chemistry

    A 2.30 m solution of urea (CO(NH2)2; FW= 60.0) in water has a density of 1.14 g/mL. Calculate the percent mass of urea in this solution?

    asked on February 9, 2010
  46. Math

    Fiona earns $15 for each lawn she mows. What is the inequality to find out how many lawns she must mow to earn at least $135. My answer 15m

    asked on January 14, 2015
  47. geometry

    Given Isosceles trapezoid ABCD. AB = 3x - 4 and CD = x + 12. Find AB. Isosceles trapezoid A B C D is drawn. 2 8 16 20

    asked on December 15, 2010
  48. Math

    The difference between the ages of two friends is 2 years. The sum of their ages is 74 years. Find the age of the older friend. (Points : 1) 38 36 39 37

    asked on June 7, 2011
  49. N/A

    I'm just needing a question to be ask: If you were head of health informaton management department at a hosptial later an FBI agent came to you with a search warrant and place it in your hand. And he ask to speak with you about the hopital's health

    asked on May 20, 2010
  50. vocabulary

    As we returned to the dressing room after that terrible first half, the whole atmosphere seemed to be (pervaded, capsized) by defeat. Ans. capsized?? With eager students and able teachers, learning will (flourish, outstrip), even though the school building

    asked on January 23, 2014
  51. Math

    Aaron had an unpaid balance of $1,177.79 on his credit card statement at the beginning of April. He made a payment of $430.00 during the month, and made purchases of $366.02. If the interest rate on Aaron's credit card was 4.5% per month on the unpaid

    asked on June 9, 2011
  52. preventing injury

    why is it important to get a medical check up prior to beginning a fitness program?

    asked on December 6, 2014
  53. Chemistry

    how would I find the mass of something from the molality..... How many grams of water should be added to 25.0 g of NaCl to produce a 0.450 m solution?

    asked on February 10, 2010
  54. Health Information Technology

    I need help with this problem I can not figure this out I had came up with five different answers and I really would like to get the correct answer. Memorial Hospital currently has 1,850 linear filing inches used. It is projected that over the next 5 to 8

    asked on December 12, 2009
  55. 8th grade technology

    what are good sites to study for technology final exams? This site may help you. http://www.homewood.k12.al.us/middleschool/staff/whip/8thgradeproftests.htm However, your best preparation is go study your text and your notes and any handouts your teacher

    asked on June 10, 2007
  56. government

    Name and explain 3 problems of the Articles of Confederation. How can I answer that question? You'll need to check your textbook to find the parts of the Articles of Confederation that were not included in the Constitution. Look for things like states'

    asked on October 19, 2006
  57. Math Solving problem

    In an egg and spoon race, children must transport eggs from one end of a course to the other. Points are awarded for each successfully transported, and points are deducted for each egg which drops and breaks. Jenny transported 5 eggs and dropped 2 eggs for

    asked on September 11, 2016
  58. English Writing

    People believe in God because... And there is life on earth because... And people who believe in God think that God has put human beings on this earth because... Could you help me? I'm not English speaker so I don't know how can I write continue of these

    asked on September 5, 2016
  59. math

    Alicia Eastman deposited $2,000 in a savings account at the Biltmore Bank paying 6% ordinary interest. How many years will it take for her investment to amount to $2,600?

    asked on June 16, 2013
  60. chemistry

    Which of the following is not true in a dynamic equillibrium describing a saturated solution? Choose one answer. a. solid crystalizes from solution b. solid dissolves in the solution c. concentration of dissolved solute remain constant d. rate of

    asked on February 10, 2010
  61. Chemistry

    A 2.30 m solution of urea (CO(NH2)2; FW= 60.0) in water has a density of 1.14 g/mL. Calculate the percent mass of urea in this solution

    asked on February 9, 2010
  62. chemistry

    A 6.00 M H2SO4 solution has d = 1.34 g/mL. What is the mass percent of H2SO4 in this solution?

    asked on February 9, 2010
  63. US government

    How is debate handled in the Senate? How is debate handled in the House? someone please answer it. anything you know about it. PLEASE!! Since this is not my area of expertise, I searched Google under the key words "US senate house debate rules" to get

    asked on December 13, 2006
  64. Math

    So, I have a question on a project that asks why you get a different answer when measuring the side of a hypotenuse versus using the Pythagorean Theorem. I did get different answers, but I just can't figure out why.

    asked on November 17, 2016
  65. Science,

    Why don’t bodies of water freeze in the winter, even when ice or snow forms?

    asked on October 2, 2016
  66. math

    A $400 loan is to be paid off in 66 monthly payments of $11.62. The borrower decides to pay off the loan after 18 payments. Use the rule of 78s to find the amount of interest saved. (Points : 1) $194.13

    asked on June 9, 2011
  67. physics

    Before a collision, a 28 kg object is moving at +13 m/s. Find the impulse

    asked on December 11, 2010
  68. Chem

    At a particular temperature, Kc = 54 for the reaction If 1.0 mole of H2 and 1.0 mole of I2 are placed in a 5.0 L container, what would be the equilibrium concentration of HI?

    asked on March 22, 2010
  69. math

    if given ..,. y=4x^-4 if x triples what happens to y?

    asked on February 22, 2010
  70. Chemistry

    A 6.00 M H2SO4 solution has d = 1.34 g/mL. What is the mass percent of H2SO4 in this solution? Choose one answer. a. 56.1 b. 43.9 c. 37.0 d. 58.8 When we calculated yesterday the answer was not B. 43.9....I got it wrong and don't know why if the math was

    asked on February 10, 2010
  71. chem.

    if gas is $4.20 a liter, how much will it cost to fill a 14-gallon tank? conversion factor: $4.20L 1.06qt 1gal ______x________x______ 1 1L 4qt i have no clue how to set it up. i'm confused. nevermind about the problem. good night. You want to convert 14

    asked on January 18, 2007
  72. government

    I am doing research project. it is about political speeches. I should find about "benefit seekers". what is benefit seekers mean? and what kind of sentence should I find. give me some examples. thank you. You can find out more about the quotation below

    asked on December 1, 2006
  73. College Math

    One manufacturer needs to calculate the net price of an order with a list price of ​$800 and a trade discount series of 12​/9​/4. Use the net decimal equivalent to find the net price.

    asked on September 18, 2016
  74. Art , Painting

    This is my homework today.. I have to write it but I don't know how to write this.. so could you guys help me? Identify and analyze how the art element, Color, is present in the final outcome.

    asked on August 30, 2016
  75. math

    In asheville north carolina in August the temperature is an even number less than 40 that has the same number of tens and ones Answer: Could it be 22 4 tens and 0 ones = 4 2 tens and 2 ones = 4

    asked on January 29, 2014
  76. Finance

    What is the projects initial outlay? Should the project be accepted why or why not? New Caledonia Problem 35% tax bracket 12% discount rate Cost of new plant $9,000,000.00 Shipping and $350,000.00 Sales: Year Sales 1 125,000 units 2 140,000 units 3 190,000

    asked on August 4, 2012
  77. math

    In a shop there are 20 customers, 18 of whom will make a purchase. If three customers are selected, one at a time, at random, what is the probability that all will make a purchase?

    asked on June 9, 2011
  78. math

    When a single card is drawn from a shuffled deck of cards, find the odds against getting a 9.

    asked on June 9, 2011
  79. Math

    13. Find the vertex of the parabola. y = -2x2 + 12x - 13 (5, -3) (-3, 5) (3, 5) (5, 3)

    asked on June 7, 2011
  80. Math

    11. Determine whether or not the relation is a function. {(-3, 6), (-2, 7), (-1, 8), (0, 9)} No Yes

    asked on June 7, 2011
  81. Math

    Determine whether or not the relation is a function (1,9)(2,10)(3,11)(4,12)

    asked on June 7, 2011
  82. Business Math

    A company purchased an air conditioning system for $10,200. Shipping charges on the system are $875. Setup costs were $1,250. The system is expected to last for 5yrs and has a residual value at $2000. If I use the straight-line method to calculate

    asked on November 2, 2010
  83. Chem

    Which direction will the following reaction in a 5.0 L flask proceed if Qp = 0.013? 2H2O(g) = 2H2(g) + O2(g) Kp = 1.6 x 10-5 Choose one answer. a. to the right because Q > Kp b. to the left because Q > Kp c. to the right because Q < Kp d. to the left

    asked on March 24, 2010
  84. chemistry

    How many grams of water should be added to 25.0 g of NaCl to produce a 0.450 m solution?

    asked on February 10, 2010
  85. chemistry

    Calculate the molarity of a solution containing 40.0 g glucose (C6H12O6) in enough ethanol (C2H5OH) to make 40.0 mL of solution.

    asked on February 10, 2010
  86. chemistry

    A 2.30 m solution of urea (CO(NH2)2; FW= 60.0) in water has a density of 1.14 g/mL. Calculate the percent mass of urea in this solution

    asked on February 9, 2010
  87. philosophy

    is the world dominated by money?

    asked on October 20, 2008
  88. ‚g‚d‚k‚o�I�I�I

    Give two examples of federalism in the United States. http://en.wikipedia.org/wiki/Federalism http://plato.stanford.edu/entries/federalism/ http://www.closeup.org/federal.htm =)

    asked on December 20, 2006
  89. Science, Nature Science,

    Give 3 examples of nutrients that WE NEED in our bodies that are soluble in water. Give 3 examples of gases that are soluble in water. Could you please help me these questions?

    asked on October 1, 2016
  90. Social Studies Religion

    A Muslim organization wants to build a small mosque in the vicinity of the September 11 Memorial in New York City. There is public outrage from many citizens who do not want a Muslim religious site there. You must write a letter to the mayor of NYC

    asked on September 29, 2016
  91. Science

    how does the initial procedure compare to your updated procedure? What changes did you have to make? Why? How can I answer this question? Please help me... ;(

    asked on September 10, 2016
  92. Science

    Imagine you designed an experiment that investigated the effect of feeding yeast cells different concentrations (0, 5, 10, 15, 25%) of sugar solutions. The yeast used the sugar to do cellular respiration and make CO2 as a waste product. The volume of CO2

    asked on August 28, 2016
  93. lang arts

    List common nouns Anne Morrow Lindbergh soon shared his love of aviation. Answer: love & aviation question: Is shared a common noun also?

    asked on January 6, 2014
  94. MAT

    The recommanded weight range for a person who is 64 inches tall

    asked on September 20, 2012
  95. finance

    Firm A has $10,000 in assets entirely financed with equity. Firm B also has $10,000 in assets, but these assets are financed by $5,000 in debt (with a 15 percent rate of interest) and $5,000 in equity. Both firms sell 10,000 units of output at $2.50 per

    asked on August 10, 2012
  96. statistics

    In which data set is there evidence of a strong nonlinear relationship between the two variables?

    asked on April 20, 2012
  97. Chemistry

    A Gaseous mixture contains 4.08g of oxygen and 2.78g of Nitrogen a)What pressure is exerted by the mixture inside a 100.0ml metal container at 150C. b) what pressure is contributed by the oxygen? (please show steps)

    asked on April 20, 2012
  98. Algebra 102

    9^x=1/3^3 Please Help

    asked on December 5, 2011
  99. geometry

    If R is the midpoint of AB and S is the midpoint of BC and AS:SC=3:2, determine the length of BS if AC=50.

    asked on September 18, 2011
  100. Algebra II

    Give the equations of any horizontal asymptotes for the graphs of the rational functions. h(x)=(7x²-8x-5)/(8x²-3x+9) g(x)=(x²+4x-8)/(x-8)

    asked on July 6, 2011

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