# Questions Asked onMay 1, 2010

1. ## Chemistry!!!

Is the molarity of a solution that contains 6 moles of solute in 2 liters of solution 12 M????

2. ## Chem

How long must a constant current of 50.0 A be passed through an electrolytic cell containing aqueous Cu2+ ions to produce 4.00 moles of copper metal?

3. ## Medical coding Insurance Math

Insurance Plan: Mountville Health Plan; patient has met annual deductible of \$250;80-20 coinsurance. Services: CPT codes: 99203 and 90700. Usual charges are: \$100& \$102. Allowed charges are:\$89 & \$87 How do you calculate between the two

4. ## Chemistry

To increase the solubility of a gas at constant temperature from 1.20 g/L at 1.4 atm to 2.3 g/L what would the pressure have to be increased to?

5. ## physics

A train moving with a speed of 31.8 m/s sounds a 136-Hz horn. Suppose a stationary observer sounds a horn that is identical to the one on the train. What frequency is heard from this horn by a passenger in the train. a) 9.8 Hz b) 31.8 Hz c) 99 Hz d) 115 Hz

6. ## college chemistry

Calculate the amount of heat required to evaporate 27.5g of water at 100.0 degrees Celsius

7. ## Chemistry

Discuss the types of intermolecular forces acting in the liquid state of each of the following substances. (Select all that apply.) 1. CH3CH2CH2CH2OH a) dipole-dipole forces b) London dispersion forces c) hydrogen bonding 2. CH3OH a) dipole-dipole forces

8. ## Physics

A DISTANT SPACE PROBE IS PROGRAMMED TO EMIT A RADIO SIGNAL TOWARD EARTH AT REGULAR TIME INTERVALS. ONE SUCH PULSE ARRIVES ON EARTH 2.92S AFTER IT IS EMITTED FROM THE PROBE. WHAT IS THE APPROXIMATE DISTANCE FROM THE EARTH TO THE PROBE? A) 7.4 X 10^8M B)

9. ## chemistry

If the solubility of a particular solute is 10 g/100 g H2O at 20 oC, which of the following would represent a supersaturated solution of that solute: a) 9 g/100 g H2O at 20 oC, or b) 11 g/100 g H2O at 20 oC.

10. ## Chemistry

How are mm Hg, torr, psi, atm, and Pa related to each other mathematically?

11. ## General chemistry

Identify the classification of isomers illustrated by [Co(NO2)(NH3)5]2+ and [Co(ONO)(NH3)5]2+. are this linkage isomers?

12. ## Chemistry

The forces holding together an ionic solid are much stronger than the forces between particles in a molecular solid. How are these strong forces reflected in the properties of an ionic solid? a) strong hydrogen bonding exists between discrete molecules b)

13. ## Chemistry - Ideal Gas Law

You have a weather balloon that is filled with Helium (He) and has a diameter of 3 ft. Find the mass in grams of the He in the balloon at 21 degrees Celsius and normal pressure. And the density of He with these conditions is .166 g/L. My Work: V=4/3 * pi *

14. ## Chemistry

The complete decay of Americium-241 involves successively with a (alpha), a, B(beta), a, a, B, a, a, a, B, a production. Identify the 11 intermediate nuclides. I did the first one, ^241_95 Am--> ^4_2He + ^237_93Np (hopes that doesn't look too confusing, ^

15. ## Chemistry

Some properties of aluminum are summarized in the following list. normal melting point 658°C heat of fusion 0.395 kJ/g normal boiling point 2467°C heat of vaporization 10.52 kJ/g specific heat of the solid 0.902 J/g°C (a) Calculate the quantity of

16. ## chemistry

How are mm Hg, torr, psi, atm, and Pa related to each other mathematically?

17. ## social studies

Who wanted to build the Erie Canal and name two inventions that were developed while building the Erie Canal?

18. ## chemistry

Oxygen gas can be generated by heating KClO3 in the presence of a catalyst. KClO3 ----> KCl + O2 (unbalanced) What volume (in L) of O2 gas will be generated at T = 25 oC and P = 10.26x104 Pa from 1.28 g KClO3?

19. ## chemistry

Why is carbon dioxide gas that carbonates fountain drinks stored in sturdy canisters?

20. ## physics

which one of the following statements concerning an ac circuit is true? a) when only resistance is present in an ac circuit, voltage and current are in phase. b) on average, the power dissipated by resistor in an ac circuit is zero. c) for a resistor in an

21. ## physics

unpolarized light with an average intensity of 750.0W/m^2 enters a polarizer with a vertical transmission axis. the transmitted light then enters a second polarizer. the light that exits the second polarizer is found to have an average intensity of 125

22. ## accounting

Enter the trial balance on a worksheet and complete the worksheet. E4-2 The adjusted trial balance columns of the worksheet for Goode Company are as follows

23. ## Chemistry

A buffer is made by mixing 52.1 mL of 0.122 M acetic acid with 46.1 mL of 0.182 M sodium acetate. Calculate the pH of this solution at 25 degrees C after the addition of 5.82 mL of 0.125 M NaOH

24. ## Algebra

98. Solve the equation -49 = x - 50 x=1? 94. Determine if the following equation is a function: x=2 No? 92. Determine if the following equation is a function: y=5 No? 89. Solve for x in the equation: 6/7x - 6 = -2 I got x=28/3 86. Does the following set of

25. ## physics

WHICH ONE OF THE FOLLOWING STATEMENTS BEST EXPLAINS WHY SEMICONDUCTORS IN TRANSISTORS ARE DOPED? A) doping converts the semiconducting material into a metallic material like copper. b) doping makes the charge carriers mobile. c) doping makes the charge

26. ## chemistry

Some properties of aluminum are summarized in the following list. normal melting point 658°C heat of fusion 0.395 kJ/g normal boiling point 2467°C heat of vaporization 10.52 kJ/g specific heat of the solid 0.902 J/g°C (a) Calculate the quantity of

27. ## physics

a series RLC circuit is comprised of a 6.00-mH inductor and a 2.50-muiF capacitor. what is the resonant frequency of this circuit?

28. ## Probability

You are taking a multiple choice test that has 20 questions with 4 possible answers each. You randoming quess each answer. What is the probality of getting 7 questions correct?

29. ## English

Do you mind my opening the window? - Of course not. - Certainly not. - No, not at all. - Not at all. - No, I don't. - Yes, I do. - I'm afraid so. - I'm sorry, but I feel so cold. - I'm afraid you can't. I have a cold. (Are the answers all suitable? Do you

30. ## MUSIC

for my music homework i have got these words Polyphonic homophonic thick texture thin texture which i need to match up with these sentences Single melodic line - i think this matches up with Polyphonic. a few parts spaced apart chordal parts that move

31. ## Stats

You are taking a multiple choice test that has 20 questions with 4 possible answers each. You randoming quess each answer. What is the probality of getting 7 questions correct?

32. ## Physics

What gases are in a fluorescent and incandescent bulb?

33. ## Chemistry

"Calculate the pH of 0.10 mol/L aqueous solution of aluminum sulfate." I am also given the ka value for the aluminum ion (9.8x10^-6)...but I don't know why I need it. I'm not even sure if I need to use it. Help please?

34. ## Firewalls/IP

Most IP addresses are public, in the sense that they can appear on the public Internet. However, a few IP addresses have been designated as private IP addresses. One private IP address range is 172.16.0.0 to 172.31.255.255. Private IP addresses can only

35. ## Chemistry

To what Celsius temperature must 44.0 mm Hg of methane gas at 89.0°C be changed so the pressure will be 83.0 mm Hg? Assume the volume and the amount of gas are held constant.

36. ## physics

A variable capacitor is connected to an ac source. what effect does decreasing the capacitance have on the reactance and current in this circuit? Reactance Current A) increases decreases b) decreases no change c) decreases increases d) increases increases

37. ## algebra

what is the solution of the following linear system? 2y + 6x = -24 y - 13x = -12 a) (0,-12) b) none c) (0,3) d) infinite number of solutions and the answer i picked i was a thanks!!!!!!!!!!!

38. ## Global History

What were the differing politucal and economic systems between the US and Soviet Union that helped lead to the Cold War? I know that the political difference was that the US was democratic and the Soviet Union were communists. However, if the US economic

39. ## Chemistry

What is the final volume of 725 mL of neon gas at 240.°C if the gas is cooled to 54.5°C? Assume the pressure and the amount of gas are held constant.

40. ## geometry

1. Refer to the following line m: b. Name two rays on m that have endpoint B. d. Find a simpler name for the intersection of rays BA and AC the line m has points a b and c going on across like that on the line

41. ## chemistry

Both aluminum and zinc are used in "air batteries", those that use oxygen from the air as an oxidizing agent. These reactions take place in one type or the other: 4Al(s) + 3O2(g) --> 2Al2O3(s) 2Zn(s) + O2(g) --> 2ZnO(s) a) Calculate DeltaG^o for these

42. ## PHYSICS

(b) Two charges of magnitude 0.610 £gC and 0.490 £gC are in a liquid dielectric with dielectric constant £e = 45.0. The charges are separated by a distance of 0.290 m. (i) What is the size of the electric force between the charges? (ii) By how many

43. ## physic problem-thermoregulation

During a dry day, a 70.0 kg athlete runs a marathon while the outside temperature is T2 = 33.2 ¢XC. The thermal power produced by the athlete's body is P = 1.05 ¡Ñ 103 W and the skin temperature is T3 = 35.5 ¢XC so that the themal exchange due to

44. ## Chemistry - Combustion Method

This question is confusing me the way its presented and also is relating it to the combustion method that is used to analyze carbon and hydrogen. It can be used to give percent N. It says a sample of a compound that weighs 8.75 mg gave 1.59 mL of N2 at 25

45. ## English

1. I'll remember to see the movie with my friend. 2. I'll remember that I have to see the movie with my friend. 3. I'll remember that I will see the movie with my friend. 4. I'll remember that I must see the movie with my friend. (Does #1 mean #2, #3, or

46. ## college Chemistry

If [K+] inside a cell is 25 times greater than a [K+] outside the cell, what is the difference in potential between the two sides of the cell wall? (this is a "concentration cell" style of problem)

47. ## Chemistry

What is the final volume of 880. mL of hydrogen gas at 335 mm Hg if the pressure is increased to 735 mm Hg? Assume the temperature and the amount of gas are held constant.

48. ## accounting

Indicate whether each of the followings accounts normally has a debit balance or a or a credit balance 1.Mary Amos,Capital 2.Cash 3.Fees income 4.Accounts Payable 5.Supplies 6.Salaries Expense 7.Accounts Receivable 8.Equipment

49. ## Health

I have already put what I think are the correct answers. I was wondering if anyone could help me with this. I REALLY appreciate your feedback. 1- The process of breaking a complex substance down into smaller components is called? A- neutralization B-

50. ## math

Fixed points of f? f(x) = x^2+13/12x - 1/2 a) use algebra to find the fixed points and classify them. b) use the gradient criterion to determine an interval of attraction for one of the fixed points of f c) find exact values of the 2nd and 3rd terms of the

51. ## physics

A variable capacitor is connected to an ac source. what effect does decreasing the capacitance have on the reactance and current in this circuit? Reactance Current A) increases decreases b) decreases no change c) decreases increases d) increases increases

52. ## MATH

Multiply and simplify 2/4n+6 times n^2+2n-3/n+1 Thank You for your help. It's greatly appreciated.

53. ## Physics

A 60.0 kg runner expends 355 W of power while running a marathon. Assuming that 8.00% of the energy is delivered to the muscle tissue and that the excess energy is primarily removed from the body by sweating, determine the volume of bodily fluid (assume it

54. ## Physics

You are working as a summer intern for the Illinois Department of Natural Resources (DNR) and are assigned to some initial work on water resources project. The department will be overseeing the construction of a dam to create a large fresh water lake that

55. ## Chemistry

What is the pH of the solution created by combining 12.40 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? I know how to solve for HCl but not with HC2H3O2.

56. ## Chemistry

Suppose a compound is involved in three different reactions denoted R1, R2, and R3. Tripling the concentration of this reactant in all three reactions causes the rates of reaction to increase by factors of 3, 9, and 1, respec- tively. What is the order of

57. ## math

what does ! mean in math

58. ## Algebra

72. Solve for the variable in the equation: 4.9x + 4.4 = 19.1 x=3? 71. Does a machine that takes one quarter at a time into its input and produces one gumball in its output act like a function? Yes? 69. Does a machine that takes one quarter at a time into

I really need someone to look at my previous posts and edit them if they need to be edited. Please point out any grammatical errors. Thank you very much. You will find my posts as soon as you enter my name in the Search Box.

60. ## Math

slope-interpept form of the line satisfying the specified conditions: through (-15, -49) and perpendicilar to 5x+8y=-48

61. ## chemistry

A pressurised can of whipped cream has an internal pressure of 1.09x105 Pa at 25.0 oC. If it is placed in a freezer at -15.0 oC, what is the new value for its internal pressure (in Pa)? explain to me! thanks

62. ## economics at UNISA

Draw and label the graphs to indicate the effect of a decrease in price of fish and chips on both demand curves

63. ## math

solve each equation: x over x+1 plus 2= 3x over x+2

64. ## Physics

DO diffuse reflections still follow the law of reflection? (Angle of incidence equals angle of reflection)?

65. ## government

what is Third way urbanism?

66. ## Math help

bearing of a tower are taken from two points A and B 250m apart, along a straight line north-south path, A being due north of B.the bearing of the tower from A to B are 140* and 110* respectively.choose two option that gives a distance from A and B of the

67. ## math

600,000 - x / 600,000 = .10 solve for x.

68. ## Physics

How when light rays travel outward from their light source in all directions, they are not parallel to each other, but when they approach an object they are parallel to each other?

69. ## fin 324

5.) Managing Working Capital. A new computer system allows your firm to more accurately monitor inventory and anticipate future inventory shortfalls. As a result, the firm feels more able to pare down its inventory levels. What effect will the new system

70. ## social studies

what battle was the turning point in the war of 1812?

71. ## calculus

can you pleaaaaase help me find the area between y=cos(4x) and y=1-cos(4x) 0

72. ## art

wat are 3 art based careers ?????

73. ## English

Can you help me check the grammar and rephrase the parts in inverted commas? Thenk you very much in advance. 1) The tales that make up the Canterbury Tales are narrated by the different pilgrims. However, in “The General Prologue” we find the figure of

74. ## Math

Perform the indicated operation and simplify. 2x+3/5x - 2x-2/5x

75. ## English

I have a question. I wrote a research paper and used MLA. I referenced from a book three different times in my paper. When I do my work cited page in the end, how do I go about the page numbers?

76. ## algebra

what is the solution of the following linear system ? 8x + 3y = 1 x + 5y = 14 a)(2,3) b)(-1,3) c) none d) infinite number of solutions and the answer i picked was b thank you!!!!!!!!!!

77. ## Math Check

Can you please see if you got the same answer as I did? Thank you. 3/x + 2/x-4 3x-12=2x subtract 3x from both sides you get -12=-1x divide by -1 final answer is 12.

78. ## science

Dr Bob What does FDA stand for?

79. ## English

1. If you heard him speak Chinese, you would take him for a Chinese. 2. To hear him speak Chinese, you would take him for a Chinese. (Does #1 mean #2?) 3. If you hear him speak Chinese, you will take him for a Chinese. 4. To hear him speak Chinese, you

80. ## science

what does FDA stand for in Australia, or what is it called in Australia?

81. ## Algebra(repost of one question)

Bobpursley: 89. Solve for x in the equation: (6/7)x - 6 = -2 I got x=28/3

82. ## INB 205 International Business

Am doing a powerpoint presentation and am having trouble with defining the relevance of international strategy to business people.

The electricity cost of a business increased from 18,000 one year to 19,000 the next. To the nearest whole percent. What was the rate of increase

84. ## chemistry

In the synthesis of Aspirin, would you eat your own aspirin crystals? If not, provide three (3) reasons why not?

85. ## math

Find the best buy on pasta sauce a. 45oz for \$1.59 b. 1qt 16 oz for \$1.99 c. 1qt. for \$1.29 d. 48 oz for \$1.79 my answer is A 15. Identify the base in the following statement 11% of what is 77? my answer is the base is What number 16. Identify the amount

86. ## college

List and discuss the three stages of crisis. In your opinion which stages is the most critical for victim

87. ## Math

Find the best buy on pasta sauce a. 45 oz for \$1.59 b. 1qt 16oz for \$1.99 c. 1qt for \$1.29 d. 48 oz for \$1.79 Is the following set of number a perfect triple 13, 15, 18 yes or no

88. ## Ms. Sue (Health)

I have already put what I think are the correct answers. I was wondering if you could help me again like you did that last time. I REALLY appreciate your feedback. 1- The process of breaking a complex substance down into smaller components is called? A-

89. ## MATH

can someone explain how an quadratic equation with factoring and give an example,PLEASE!

90. ## Government

How can the actions of urban elites help explain the Great Recession?

The 29th percentile is greater than the 30th percentile. yes or no

92. ## To Writeacher

Can you please have a moment to look at my other previous posts, thank you

93. ## social studies

who created the first useful steamboat and what was it useful for?

94. ## English

I have a question. I wrote a research paper and used MLA. I referenced from a book three different times in my paper. When I do my work cited page in the end, how do I go about the page numbers?

95. ## chemistry

A large cylinder of helium had a small hole through which the helium escaped ata rate of 0.0064 mol/hr. How long would it take for 0.010 mol of CO to leak through a similar hole if it were at the same pressure?

96. ## Maath

Solve The Equation 3/y+2 over 7/y-4

97. ## chemistry

how to find the volume of oxygen at STP from the Deoomposition of 10.8 g of mercuric oxide?

98. ## General chemistry

What is the name of the complex [Ni(en)3]3[Cr(CN)6]2? tris(ethylenediamine)nickel(II) hexacyanochromate(III) is this correct? im not sure if it should be II and III or the other way around

99. ## economics

what are some national fiscal policies that can affect mortgage rates, housing starts, and housing prices

First 7: 57 61 57 57 58 57 61 Second 7: 61 52 69 64 46 54 47 Indicate whether the given statement could apply to a data set consisting of 1,000 values that are all dfferent. a. The 29th percentile is greater than the 30th percentile. yes or no b. The

101. ## Trigonometry

I just want to know if this answer is correct, 120/169. Use identities to find the indicated value for each angle measure. sin θ = 12/13, cos θ > 0 Find cos (2θ).

102. ## English

1. Did you finish reading that, Harry Potter novel? (What is the part of speech of 'that' in the sentence? Do we need "comma" after 'that'? Is the sentence correct?))

103. ## chemistry

Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.

104. ## Math

Solve the equation and check your solution. Thank You 3/v= v/2v+9

105. ## chemistry

At a prominent state hospital, a 45-year-old woman is receiving a ‘combined modality' treatment for the initial stage of breast cancer. State the two aspects included in this treatment. State the methods by which a radiation oncologist can administer

106. ## visual images and how to use them

Question 12 Which of the following visual arguments contains an ethical appeal? none of the above 1 a bar chart of 2003 housing construction sales per state an advertisement for corn seed that shows a farmer and his family standing next to a tractor with

107. ## math

what is 6 fatorial

108. ## math

WAT IS 12 FACTORIAL

109. ## U.S. History

What are some major econmic events from the 1950s to the 1990s in the U.S.?

110. ## psy

what is ubsystematic observation?

111. ## Math

Determine whether f is continuous at x=c in the function. Use the 3 conditions of continuity to justify your answer. f(x) = x-1/x+1 c=-1 My answer is not continuous. Am I correct?

112. ## math

Solve each equation: 11/3v+2 minus 3/4= 5 over 3v+2

113. ## government

why isnt there a political party dedicated to labor class in the U.S? a. proves politicians arent concerned about serving working class. b. result of govt restrictions on political activities of labor unions c. reflects diffictulties in unifying a party on

114. ## MATH

can someone explain how an quadratic equation with factoring and give an example,PLEASE!

115. ## Math

600,000 - x / 600,000 = .10 solve for x.

116. ## Math

I appreciate all of your help. We had about 77 of these problems to do. These are the LAST two problems that I need some help on. Thank you so much for everything. 1/x-1 minus 2/x^2-1= -1/2 2/y plus y-1/3y= 2/5

117. ## accounting

On december1 Doris opened a speech and learning clinic.during december,her firm had the following transaction involving revenue and expenss.did the firm earn a net income or incur a net loss for the period? what was th amount? Paid 2,600 for advertising.

118. ## accounting

At the beginning of September,Alex Parker started parker investment services, a firm that offer advice about investment and managing money.on sept 30,th accounting record of the business showed the following information prepare an incom statment for the

119. ## Government

What's the U.S model of corporate control? What are its consequences for the American society?

what wasthe name of the road once used by native americans that led thousands of american settlers to western new york

121. ## social studies

who is the seneca leader who opposed the sale of any land to settlers in the big tree treaty?

122. ## social studies

what did british ships do to americans during the war of 1812

123. ## math

I appreciate all of your help. We had about 77 of these problems to do. These are the LAST two problems that I need some help on. Thank you so much for everything. 1/x-1 minus 2/x^2-1= -1/2 2/y plus y-1/3y= 2/5

124. ## Chemistry

What would the freezing point be for a solution of 0.87 M aqueous ammonia? the density of this solution is 0.922 g/cm3.

125. ## math

chemist has 6liter of 50% acid solution .how much water added to obtain 20% acid solution?

126. ## geometry

In the figure, l is parallel to m, and m( 1) 5 60°. Find each of the following: b. m( 6) l is paralled to m. this is how the numbers are listed 2 1 3 4 6 5 7 8

127. ## geometry

i have 2 questions but i can't copy the figure for you to understand the problem. is there a way to scan it attach it and sent it to someone so I can understand? thanks.

128. ## Social Studies

Can anyone help me with a definition for Jewish people during the middle ages?

129. ## Social Studies

Does anyone know of any words from the Medieval times that starts with the letter "O"?

130. ## math

True or False square root of 41 is a rational number

131. ## Phsyics

Can you explain to me how an LCD works?

132. ## algebra

what is the solution of the following linear system? -5x - 5y = -6 -5/2x - 5/2y = -6 a) none b) (-2,2) c)(-,2,-2) d) infinite number of solutions and the answer i picked was a or d thanks :)

133. ## Chemistry - Molecular orbital Config

I'm having trouble with this problem on my homework, We are supposed to write the molecular orbital config for a molecule. Could someone walk me through the process of how to do this and I'll see if I can get the hang of it? What I have to draw is a

134. ## college health care claim preparation

I am doing an assignment on how to improve patient intake efficiency. Would assigning one staff member the task of dealing with patient registration help? Are there any other ideas that could make the intake process quicker?

135. ## science

well i know alot of acids but my stupid teacher has made me do homework about how many acids can i name in the house

136. ## math

how is ! used in math

137. ## math

55 is 50% of what number

138. ## math

51 is 755 of wat number

139. ## math

40 is 160% of wat question

140. ## math

84is 7% of wat number

19% of 112

65% of 298

4^2

8^2

3 squared

10squared

5^3

10^3