# 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.

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

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?

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

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

6. ## economics

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

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).

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.

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?

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

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

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?

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

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.

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.

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

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

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.

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,

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

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

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

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.

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

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

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

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

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.

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?

30. ## Math

I need help. Name a pair of vertical angle.

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?

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

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?

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

35. ## Math

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

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

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

52. ## preventing injury

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

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?

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

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'

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

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

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?

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

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

62. ## chemistry

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

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

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.

65. ## Science,

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

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.

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

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

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?

78. ## math

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

79. ## Math

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

80. ## Math

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

81. ## Math

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

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

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

84. ## chemistry

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

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.

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

87. ## philosophy

is the world dominated by money?

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 =)

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?

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

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... ;(

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

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?

94. ## MAT

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

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

96. ## statistics

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

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)

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.