# Questions Asked onJune 5, 2011

1. ## Chemistry

3 I- (aq) +H3AsO4 (aq) + 2 H+ = I3- (aq) + H3AsO3 (aq) + H2O (l) is found to be first order with respect to each of the reactants. write the rate law. what is the over all order?

2. ## Chem

You made up a saturated solution of calcium sulfate (CaSO4). The temp is 25 degrees Celsius. You then add 5.00*10^-3 of sodium sulfate (NaSO4). What are the concentrations of calcium and sulfate after equilibrium is reached? The pKs of CaSO4 is 4.58. I

3. ## Chemistry

Balance the equation in aqueous basic solution: As2S3(s) + H2O2(aq) → AsO43-(aq) + SO42-(aq) I normally understand how to balance redox equations, but this one confuses me because I would normally think that the As2S3 is being reduced to AsO4^3-, but

4. ## history

2. What did the Greek intellectual triumph entail, and what were its effects?

5. ## english- literature

Which information does Elizabeth not report to John?a. The court has accused fourteen people of witchcraft. b. The court has condemned Sarah Osburn to be hanged. c. The crowd parts for Abigail like the sea for the Israelites. d. Mary Warren describes

6. ## history

Describe how the Kushans, Sakas, and other inner Asian groups played important roles in world history.

7. ## Math problems

i am an odd multiple of 50p, my number of pounds is double 18

8. ## Chemistry

How many grams of carbon dioxide will be made when 100 grams of methane burn in an excess of oxygen

9. ## Chemistry

A bag contains a mixture of copper and lead BBs. The average density of the BBs is 9.80 {\rm g/cm^3}. Assuming that the copper and lead are pure, determine the relative amounts of each kind of BB.

10. ## history

What did the Greek intellectual triumph entail, and what were its effects?

11. ## Chemistry12

How will the equilibrium: Heat energy + CH4 + 2H2S = CS2 + 4H2 be affected by the following? a) A decrease in temperature? b) The addition of H2 c) The removal of some CH4 d) An increase in the volume of the container e) The addiotion of a catalyst. i know

12. ## Chemistry

Hi there - I'm going to post the question as written in my book. Three 20.0 mL samples of nitric acid are titrated with a 0.200 mol/L solution of sodium hydroxide. The results for the three trials are shown in the table below. What is the concentration of

13. ## Statistics

A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed in to the cup is normally distributed with a standard deviation of .08 ounce. You can allow the cup to overfill 2% of the time. What amount should you set as the

14. ## english.. literature

In act two of the crucible 1 One of the chief conflicts established in Act Two is between A. John Proctor and Ezekiel Cheever B. Elizabeth Proctor and Mary Warren C. John Proctor and John Hale D. John and Elizabeth Proctor i chose A 2. what does elizabeth

15. ## Chemistry

the reaction is CO + SO3 CO2 + SO2, the rate law for this reaction is rate=k[SO3] and the mechanism is SO3 -> SO2 + O CO + O -> CO2 Which is the slow step? I have to find catalysts and intermediates and is O both catalyst and intermediate? If it isn't,

16. ## math

find the accumulated value of an investment of 25,000 for 4 years at an interest rate of 5%, if the money is a compounded semiannually; b. coumpounded quaterly; c. compounded monthly d. coumpounded continuously.

17. ## Math Probability

3) For years, ocean going ships have been using colored flags for signaling. By changing the order of the colored flags, the ships can send out different signals. If most ships carry six flags (each of different colors) how many different signals are

18. ## Chem

Given the reaction: SO2(g) + NO2(g) = NO(g) + SO3(g) H = -42.6Kj How will the concentration of SO3 at equilibrium be effected by the following: a) Adding more NO2(g) b) Removing some NO(g) c) Increasing the temperature

19. ## science 202

I take a violin and make an exact copy of it, except that it is bigger. The strings are identical except for the length; they have the same material and the same tension. If the new violin is 2.30 times the size of the original, at what frequency would the

20. ## history

Compare and contrast the Achaemenid and Mauryan Empires. What was their respective historical significance? How did each affect the world beyond its borders?

21. ## Probability

1 a) What is the probability of you drawing three face cards from a well shuffled deck if you keep each card you draw? Since there are 12/52 face cards would it be first 12/52, then 11/51 then 10/50? I am confused about this b) What is the probability of

22. ## science(chemistry)

an organic compound contains 49.3 percent carbon,6.84percent hydrogen and its vapour density is 73.molecular formula of compound

23. ## world geography

007690RR, 007691, 007692, 007693 pls help me. penn foster exam for world geography.

24. ## literature

In act two of the crucible which becomes apparent during the course of ACT two? a. most people in Salem find the accusers uncreditable. b. more and more women are being arrested for witchcraft c. Hale wil realize the error of his way d. elizabeth will be

25. ## maths

ben bought a car for £12,000 each year the value of the car depreciated by 10% what is the value of the car 2 years after he bought it?

26. ## Physics

A 1.5 uF capacitor is connected to a 9.0 V battery. Use PE=1/2C(change in V)^2 to find the energy stored in the capacitor.

27. ## maths

5x10^2 divide by 7x10^4 what is the answer in standard form

28. ## calculus II

Find the volume of the solid obtained by rotating the region under the graph of the function f(x)=x^8/9 about the x-axis over the interval [1,2].

29. ## Psychology

Will someone please let me know if I chose the right answer for my 10 questions? I will indicate my answer that I chose with (MY CHOICE) 1. Factors that distort the way the independent variable affects the dependent variable are referred to as:

30. ## Psychology

A physiological support of hypnosis as a different state of consciousness is: 1. rapid eye movement initiated when a person is hypnotized. 2. a change in the electrical activity of the brain in hypnosis. 3. the sense of time removed. 4. reaction time slows

31. ## health?

What places (countries) is Cocaine grown (made)?

33. ## health

What is the website for the Food/> Borne/> Illness/> Education/> Center/>/>? What foods does the government say should be destroyed following Hurricane Katrina or any other hurricane or flood?

34. ## calculus

how do I find the derivative of f(x)= 4/ square root of x ? using the limit process?

35. ## calculus

Find the average rate of change of the function over the given interval. You must reduce and simplify your answer, if possible. a. f(x)=cot x, [pi/6, pi/2] b. f(theta)= -2 + cos (theta), [-pi, 0]

36. ## Algebra

The Office Jet printer can copy Janet's dissertation in 20 min. The Laser Jet printer can copy the same documents in 12 min. If the two machines work together, how long would they take to copy the dissertation? is 1.25 right?

37. ## Physics

You hear a beat produced by 2 sources: 342.6 and 351.8 Hz. What is the period of the resulting beat tone? -- is there a formula for this? If so what is it and how do you solve the question?

38. ## social studdies

posted this yesterday, some person replied. not sure if shes right. 1841. Describe what happened between Simpson and McLoughlin. In 1841, Simpson toured the area again and discovered that the fur trade was not expanding as he had hoped. He decided to

39. ## Health

Ok, in Health class my TOPIC is Cocaine----- and i need someone to answer the following Chronic Effects: When someone uses this subatance over a long time what damaging effects can occur? P.S. my topic is COCAINE NOT crack cocaine...

40. ## math

a class consists of 14 men and 16 women. A group of 5 is randomly chosen a) the probability of this group containing at least 2 women and at least 2 men? b) probability the group contains the same gender.

41. ## History

Explain what the spread of Hellenism meant to the Greeks and what impact it had on the people of Asia, Africa, and Europe.

42. ## history

Discuss the major consequences of Alexander the Great's death on world history.

43. ## math

i need help with finding out what formula do you use to find the B= area of base. I need to know also how to multiply by height. ( B= L.W B=9.9) WHAT COMES NEXT 5FT IS THE HEIGHT.

44. ## health

How did Gatorade get its name?

45. ## health

What two minerals comprise table salt

46. ## maths

simn spent 2/5 of his pocket money on a computer game he spent 25% of his money on a ticket for a football match what is the fraction of his pocket money that he had left

47. ## Chemistry

The question is "the reaction CO + SO3 CO2 + SO2 has two possible mechanisms. If the rate law for this reaction is rate=k[SO3] which mechanisms is correct? which step in THAT mechanisms is the slow step? and the mechanisms are: mechanism 1 CO + @ -> CO@

48. ## Psychology

Kara heard the noise, but could not understand what was being said. Perhaps it was simply the humming of the machines that she heard? She was uncertain whether she should move toward or way from the sound. Kara is having difficulty with: 1. sensation 2.

49. ## Maths

y= ae^(bt)sin(kt) Use a sine regression to determine k, the period of oscillation of this system. State the regression equation and superimpose its graph on that of the data set. help?

50. ## social studies

In what sense is violence seen as a cultural and social phenomena?

51. ## Algebra plz check

Find all numbers for which the rational expression is undefined -12/5y. The rational expression is defined for every real number is this correct?

52. ## Health

How is Cocaine manufactured illegally?

53. ## Math - Logarithm

Solve the following equation. Please show all of your work. 5 ln 2x = 10

54. ## maths

what is the nth term for the following sequence which begins 7, 11, 15, 19, 23

55. ## Language Art

I saw a young girl (stealing, stole, steal, steals) something from the shop. which answer should it be and why?

56. ## psychology 202

Which element of Freud’s personality theory is guided by the pleasure principle

57. ## Chemistry

The ksp of aluminum hydroxide is 5.6e-17. What is the concentration of hydroxide in a saturated solution? For the answer I got [AlOH] [Al] [OH]^2 5.6e-17 x 3x 5.6e-17 = 3x^4 x = 6.6e-5 Is this right? I'm not sure about 3x^4 part...

59. ## Spanish

44. Me gusta mucho el helado. Siempre lo ____ de postre. a. pide b. pido c. pides d. pedir D? 45. Me gusta leer. Por eso ________ saco libros de la biblioteca. a. a menudo b. mucho tiempo c. una vez d. punctualmente A? 46. Compraron los churros que los

60. ## Psychology

As a scientist, Carl is concerned with the intensity of lights in the modern human environment. In his research project, Group A consists of volunteers who have agreed to sleep each night for a week with a 150 watt light bulb hanging over their bed. Group

61. ## Psychology

Although someone who is hypnotized may be compliant and susceptible to suggestion, it is clear that: 1. they are pretending and know exactly what they are doing 2. they will be able to recall the directions and events which took place after they return to

62. ## geometry

in each circld, find the value of x. then find the given measure m

63. ## English

I really don't know how to express questions n. 1-2 better. Can you please help me? 1) How are Joyce's Dubliners arranged and what are its two recurrent themes? 2) What features have all the characters in Joyce's "Dubliner" have in common? 3) In Joyce's

64. ## Math

justin had nickels and dimes in his pocket. when he counted out his change, he had 80 cent. if there are 12 coins altogether, how many dimes did he have?

65. ## math

two similar hexagons have perimeters of 20m and 50m. what is there scale factor?

66. ## Physics

By our sign conventions, if a battery is traversed in the actual direction of the current in it, what can you say about the sign of the change in electric potential (the battery’s terminal voltage)?

67. ## Physics

Use Kirchhoff's junction theorem to explain why the total equivalent resistance of a circuit is reduced, not increased, by connecting a second resistor in parallel to another resistor.

68. ## Psychology

1. One of the addictive aspects of alcohol can be found in the difference between actual effects and perceived effects. Although alcohol is a depressant, many claim that it: (a)causes intoxication. (b)results is slurred speech. (c)produces feelings of

69. ## algebra 1

forty two is 14% of what number?

70. ## Chemistry

What type(s) of intermolecular forces allow CO2 to dissolve in water? Do CO2 and H2O have a relatively strong or weak attraction to one another? Explain. Please and thank you!!

149. ## pre-cal

Find the terminal point determined by t.Please enter answer in ordered pair

150. ## com155

Do I have all the pronouns in() in these sentences? Are the sentences correct? 1. My friend Gloria has decided that (she)needs to go to debt counseling. 2. When Gloria and I discussed the matter (we) thought that it would be best to talk to (her) husband

151. ## health

1. How much sodium is in one tbsp of salt?

152. ## Health

How many teaspoons of sugar in one can of soda?

153. ## health

What is diabesity?

154. ## MATH

I NEED HELP WITH FINDING THE FORMULA FOR PROBLEMS DEALING WITH RADIUS AND DIAMETER. The radius is 12 in and the diameter is 4 in.

155. ## health

What is Ugli Fruit?

156. ## health

What fruit contains 383 nanograms of melatonin

157. ## Math - Logarithm

Solve the following logarithm equation. Please show all of your work. log (5 + x) – log(x – 2) = log 2

158. ## Grammar usage

Jerry practiced his guitar chords every night, just (like or as) his teacher told him to do.

159. ## math

what does steeper than 30 degrees mean?

160. ## Grammar usage

Maurice accidentally stepped on the back of my shoe, and the shoe flew (off or off of) my foot.

161. ## maths

abby and berry share £22 in the ration 3:1 how much do each person get?

162. ## Science

What are the different types of motion? I always get those mixed up and my older sister says that we will be studying that next year. Thanks for the help!

163. ## Grammar usage

My family (use to or used to) live near the beach.

164. ## Math puzzle

how would you go about solving this ive tryed everything. 2*2+7*3+4*3+3+4+3*2=? 231 is incorrect ty for tryin Ruby still need answer please n e 1

165. ## english

parents want thier children to go to collage how everever they don't aways have the funds to sendthem

166. ## Life science

True or false, the healthiest position to sleep on for the baby while you're pregnant is on your back

167. ## maths

simplify p to the power 4 times p

168. ## statistics

The table below shows the number of girls who ran certain distance. -------------|---|----|---|----|----|--Distance(Km) | 5 | 10 |15 | 20 | 25 | -------------|---|----|---|----|----|--No. of girls | 2 | 1 | 3 | 4 | X |

169. ## maths

wayen bought an ring for tracy the total cost of the ring was £360 plus VAT at 20& what is the cost of the ring ?

170. ## maths

sarah invited 80 people to a party only 48 of the people invited came to the partyy express 48 as a perecentage of 80

171. ## physics

What is force of attraction between two students of mass 20kg,10meters apart?

172. ## physics

What is force of attraction between two students of mass 20kg,10meters apart?

173. ## maths

simply fully sp to the power 4 divide by 10p to the power 3

174. ## puzzle

Who to join 9 points place in a form of square in only 4 moves witg the help of two points place in outer square

175. ## maths

expand 5(3w^2+4)