# Questions Asked onJanuary 31, 2007

1. ## help me for this stupid worksheet

the question is.. why did the ghost decide to haunt city hall? urgh i don't fee like doing it so im hoping someone has the answer :] You might have gotten an answer if you'd told us the source of your question. To which story, poem, play are you referring?

2. ## Chemistry

Given 2Al2O3 (s) --> 4Al(s) + 3O2 (g) (standard enthalpy change= 3351.4 kJ) a) What is the heat of formation of aluminum oxide? How do I find heat of formation from standard enthalpy change? I know how to do it when I'm given enthalpy, but they aren't the

3. ## math

what is 84 over 100 in simplest form? If i had a calculater i could help you but i can't do it on paper hit me up this is shawn and help me with my problem I don't know what you call simplest form? 84/100 could be written as 0.84. If you want it reduced to

4. ## math

how do you calculate theoretical yield of something? I don't know where to find the formula You go to the balanced chemical equation, and look at the mole ratio between the reactants and products. The theoretical yield is the value calculated from

5. ## Earth Science

A region of ocean water having the same temperature and salinity throughout is what??

find 3 consecutive integers such that the product of the second and third integer is 20 Take three integers x, y, and z. The for xyz, we want y*z = 20 The factors of 20 are 20*1 10*2 5*4. 20*1 are not consecutive. 10*2 are not consecutive. But 5 and 4 are

7. ## Physics

A .30kg softball had a velocity of 15m/s at an angle of 35 degrees below the horizontal just before making contact with the bat. What is the magnitude of the change in momentum of the ball while it is in contact with the bat if the ball leaves the bat with

8. ## math

when you are multiplying an equation how do you find like terms The ones that look alike. The numbers are like terms such as 4 or 8 or 10. The variables are like terms such as 4x or 9x or 3x but both of these like terms are different still from say 4x^2 or

9. ## Chemistry

EQUILIBRIUM: Given the equation 2 PbS(s) + 3 O2(g) 2 PbO(s) + 2 SO2(g) What direction will the reaction proceed if additional SO2 was added to the system at equilibrium? Forward Reverse Nothing Happens Difficult to determine You really need to do this

10. ## math,factoring,help

Can someone please show me step by step how to do these. I've read the book and there examples and It is just not clicking. Directions: Factor each of the following polynomials completely Problem:#1 14x^2-20x+6 Directions:Find all positive values for "K"

11. ## Chemistry

Two Flasks containing the same inert gas are at the same temperature and pressure of 800 mmHg. One flask has volume of 1.0 L and the other, a volume of 2.0 L. Enough volatile liquid is injected into each of the flasks to allow phase equilibrium to be

12. ## Thank you Ann (kinematics)

Thank you Ann! I had the equations and really was closing in on the answer... (stopping for 23 s is what really got me confused) in either case, the displacement for a) is 888 m ! Now I'll try to calculate (b). Thank you much! P.S. This is in response to

asked by eric (new chem or physics prob. in)
13. ## Chemistry

EQUILIBRIUM: To prepare the standard solution, a very large concentration of ferric ion is added to a small initial concentration of thiocyanate ion. True or False It would help if we knew what you were doing. We are determining Chemical Equilibrium:

14. ## math

A cube with edges of length 2 centimeters is buildt from centimeter cubes. If you paint the faces of this cube and then break it into centimeter cubes, how many cubes wil be painted on three faces? how many will be painted on two faces? On one face? How

15. ## Chemistry

Explain what happens when you add sodium chloride to boiling water. I know that when sodium chloride is added to water, the boiling point of water increases. What happens when it is added to already boiling water? I know it increases the temperature, I

16. ## Chemistry

Two flasks containing the same inert gas are at the same temperature and pressure of 800. mm Hg. One flask is injected into each of the flasks to allow phase equilibrium to be established. No leakage occurs. If the pressure in the 1.0 L flask is 900 mm Hg,

17. ## science

Does water with salt boils faster than plain water Yes, salt increases the waters boiling point and therefore a higher temperature is needed for the water to boil. Salt does, indeed, increase the boiling point of water due to the salt but it will take

18. ## math ( subtracting fractions)

12 1/4- 4 1/8 When you add or subtract fractions, you have to have the same denominator. In this problem you have to change 1/4 to 2/8. Then subtract the fraction and then subtract the whole number. Please post your answer and we'll be glad to check it.

19. ## Math

What volume, in ml, of a 60% of HCl acid solution must be added to 100 ml of a 30% HCl solution to make a 36% HCl solution. We need 2 alegabreic (?) equations. The first I can get is: 0.36x - 0.60y = 100ml (this is probably wrong)? Blah. I can't get the

20. ## geometry

T is the set of all positive numbers n such that n

21. ## Math

A retail outlet purchased 400 printers at a list price of \$80 less 6%, 3%. The Gross Profit Margin on the printers was 50%. After selling 50% of the shipment, the rest of the printers were marked down to a reduced selling price. When there were only 30

22. ## science

What volume of helium would be in a balloon the size of a soft drink bottle? What's the volume of the small drink bottle? That's how much helium would be there. no the question was WHAT WAS THE VOLUME OF HELIUM WOULD BE IN A BALLOON THE SIZE OF A SOFT

23. ## chemistry

Hi, can you tell me what the valency of Aluminium and Selenium? is this the question from q1a i got H+1 and -2 Is that what you thought Answered above.

24. ## English

i need notes on each chapter of the book The Wave by todd strasser please if u can thank you http://search.yahoo.com/search?ei=utf-8&fr=slv1-adbe&p=The+Wave+by+todd+strasser Since this book was copyrighted in 1981, and copyrights last for 70 years and can

25. ## algebra

graph each of the following equations below using their intercepts?. 6x - 3y - 12 = 0 find the intercepts Y intercept is when x is zero x intercept is when y is zero. plot those points, connect the dots.

26. ## chemistry

0.702g of arsenic an oxide of arsenic mass 0.927g how do i calculate the mass of oxygen that combines with 1 mole of arsenic atoms to form the oxide of arsenic. how many moles of oxygen atoms does this mass represent a and then using that answer i have to

27. ## chemistry

I need to take a sample of the following substances: *an aromatic compound *a liquid that has Alum in it *a volatile liquid *something with a ketone group in it *something with an alcohol group in it *something with an ester group on it and 15 more

28. ## Math

If I have 4 people and I want to take a picture of them standing side by side, how many total different combinations can I use? If I have 5? if I have 10? Is there a mathematical equation that would figure out the total no matter how many people I start

29. ## Modern World History

Where can i get a trace of events from the Crimean War to the fall of the Romanavs? I searched at Google for timeline crimean war romanovs and these are the results:

30. ## chemistry

what are the valences expected in unuhexium? the outer is 7s2 7p4 The valency is 6 how do i find the highest hydride and highest fluoride of ununhexium as i have to give an empirical formulae one confused student thank you but could you please explain how

31. ## Chemistry - Rate Law

The following example is given in my textbook: If a chemical equation is: NO2 (g) + CO (g) -> NO (g) + CO2 (g) The rate law is: Rate = k[NO2]^2 Usually you put in the reactants in their own sets of brackets, so why isn't the reactant CO involved in the

32. ## Chemistry- Organic Reactions

Can anyone help me with this question: I have to show how I would synthesize the molecules: hexanol, bromo-2-pentene, and ethoxypropane by using the starting matierials: -benzene -bromocyclopropane -butanoic acid -chlorine gas -cyclohexane -ethanol

33. ## Chemistry

What do you mean by The American Business Culture? How do I write a research on this? These web sites will get you started on your research. http://www.communicaid.com/us-business-culture.asp (Broken Link Removed)

35. ## factoring

how to factor x^4 - 2x^3 - 8x + 16 Thanks. you can factor by grouping wich is to divide the equation into two pieces 1)x^4-2x^3 -8x+16 2)now factor this two x^3(x-2)-8(x-2) 3)you will get x^3-8 and x-2 4)factor x^3-8

36. ## Help with my Grammar Exercise ? if its all correct

-Nonracist and nonagist language - *The woman who earned the award was Negro from Lousiana. *It seems that every Golden Ager is on the bus trip to Laughlin, Nevada. -Talking about people with disabilites and disease- *The blind people were downtown for a

37. ## galnds and their functions

Why are aspirin and ibuprofen effective in treating headaches? Thank you for using the Jiskha Homework Help Forum. Aspirin and the NSAIDs inhibit cyclooxygenase, leading to a decrease in prostaglandin production; this reduces pain and also inflammation (in

38. ## Chemistry

What will be the vapor pressure at 25 degree C of a 30.0% (by mass) solution of glucose, C6H12O6 (a non-electrolyte-molar mass = 180 g/mol), in water? The vapor pressure of water at 25 degree C is 23.8 mm Hg. Psolvent = XsolventPosolvent. You will need to

39. ## math

graph each of the following equations below using their intercepts?. 25x + 50y - 100 = 0 find the intercepts Y intercept is when x is zero x intercept is when y is zero. plot those points, connect the dots.

40. ## Math! Help! Help! Help!

Hello a compound with: density of: .80 g/cm^(3) volume of: 1ML what is the mass? How do you conver this? mass = volume x density solve for mass volume = 1 mL = 1 cc = 1 cm^3 density = 0.8 g/cc plug and chug Post your work if you don't understand this and

41. ## chemistry: brain teaser

I have this question that i am having trouble with..Please help Sally and 3 friends each bought a pumpkin at a local produce market. No two people carved their pumpkins to resemble the same object nor did any two buy their pumpkins at the same market.

42. ## Geog

In one Minute of time, how does the earth rotate in minutes or seconds of longitude? rotation=360 degrees/ number minutes in the day. 360/1440 = 0.25 is that the right answer

43. ## Chemistry

The molar mass of a non-dissociated, non-volatile compound is to be determined by dissolving 5.00 g of the compound into 50.0 g of benzene. The freezing point of benzene was lowered by 2.5 degrees C. The freezing point depression constant (Kf) for benzene

44. ## physics (Kinematics)

A motorist drives north for 35.0 s at 25.0 m/s and then stops for 23.0 s. He then continues north traveling 13.0 m in 2.00 s. (a) What is his total displacement? (b) What is his average velocity (magnitude and direction)? I am just clueless on this one. I

45. ## colonial america

WHAT WERE THE FIRST TWO SETTLEMENTS IN NORTH AMERICA? http://www.historyplace.com/unitedstates/revolution/rev-early.htm First = 1565 Scroll down to find others. =)

46. ## Bus. law

Is whisle-blowing an appropriate subject for corporation ethics codes? yes. If you wanted to run a business, would you like for your employees to report waste, graft, corruption, or worse? Now if you are doing those things, maybe it would not be such a hot

47. ## chemisrty

have been asked to write how i got this equation but i cant put it in words can you help me Al2 Se3 +6 H2O ==> 2Al (OH)3 +3H2Se i can do this but like i said putting it into words i just cannot make it coherant The answer you should give is you found it on

48. ## math

graph each of the following equations below using their intercepts?. 6x - 3y - 12 = 0 find the intercepts Y intercept is when x is zero x intercept is when y is zero. plot those points, connect the dots.

49. ## algebra

graph each of the following equations below using their intercepts?. 25x + 50y - 100 = 0 find the intercepts Y intercept is when x is zero x intercept is when y is zero. plot those points, connect the dots. please answer my question with solution. 2y - 8x

50. ## chemistry

Hi, can you tell me what the valency of Aluminium and Selenium? hi i was going to pose that question im glad you did are you doing s103 by any chance Al is in group IIIA (or 3) depending upon the system you are using; therefore, it has three electrons in

51. ## econ

Suppose an individual has 60 hours of time available in the week and has to decide how much to work. The hourly wage is \$ 10 and he has \$ 50 per week from a government subsidy. 1. (15 points) Draw an equilibrium where the individual choose to work 50 hours

52. ## global warming

Can anyone suggest to me any sources of research, like sites, books or magazines on global warming for my research paper? One place to start is here: http://blogs.chron.com/sciguy/ This is the blog by the science editor at the Houston Chronicle, and he

53. ## Social Studies

Discuss the validity of the following quotation: "The British imperial economic system, including mercantilism, exploited the American colonists and offered them few benefits. As such it represented a valid reason for revolution."

54. ## Economics

it is felt gdp needs to increase by 700 in order to reach a full employment level by how much must government change taxes if they intend to increase spending on national defence by 120? they feel that the MPC in the country is .9 and they want to close

55. ## social!

How important is it that members of a society share certain views in common? It's important that they share some views, but they can also agree to disagree in a democratic society.

56. ## Spanish

We have to translate the following sentences into spanish [we're working on subjunctive -- adverbial clauses.] He will insist until she accepts. My answer: Insistirá hasta que acepte. Is this right? I know insistir often carries along "en", but it doesn't

57. ## algebra

The kinetic energy of a particle of mass m is found by taking one half of the product of the mass and the square of the velocity. Write an expression for the knetic energy of a particle. KE=.5mv^2

58. ## compositon

Help me with an idea for an essay, preferably based on personal values. Should I go to Iraq and fight? Is being rich more important than helping others? Is getting a college education necessary?

59. ## math

graph each of the foloowing equations below using their intercepts?. 18x + 36y + 72 = 0 find the intercepts Y intercept is when x is zero x intercept is when y is zero. plot those points, connect the dots.

60. ## math

Graph each of the following equations below using their intercepts?. 0.2x - 0.5y = 2 find the intercepts Y intercept is when x is zero x intercept is when y is zero. plot those points, connect the dots.

61. ## Chemistry

Which statement about Kc is wrong? A. Kc is always a constant B. For some reactions, Kc increases with temperature increase C. For some reactions, Kc decreases with temperature decrease D. For some reactions, Kc changes when pressure is changed A is

62. ## Chemistry

Using the principles of bond breaking and bond making, how can I explain why there is no change in temperature in phase changes? In a phase change, for example when boiling water is converted to steam, no O-H bonds are broken and none are made. Enough

63. ## Algebra

Which one of the basic functions (linear, quadratic, rational, or exponential) is related to the arithmetic series? doesn't arithemetic do something like a constant slope? I think so! ♥☻☺▬M!«5•ÄUÄ{A']○♥]

64. ## Phrases and Subordinate Clauses

Basically, I'm confused on this. The sentence is below: The old English word handbook, for example, has slightly different meaning from the french derived manual, a close synonym. I have to find the verbal, appositive, prepositional and absolute phrase (if

65. ## math

what is the gcf of the monomials 24,81 3 goes into each

66. ## calc

i need to find the definite integral from 0 to 2|b| of .... x divided by sqrt(x^2 + b^2) dx im having a lot of trouble, thanks in advance Let u = x^2 + b^2 du = 2x dx The integrand becomes (1/2) u^(-1/2) du and the integral of this is u^(1/2) = sqrt(x^2 +

67. ## Chemistry

I need to work out the density of the gaseous oxide of arsenic at STP in g L-1 I realise density = mass/volume but my answer works out very high!! I have already worked out the volume to be 52cm^3 (Cubed). the mass to start with was 0.702g and at the end

68. ## math

Graph each of the following equations below using their intercepts?. 0.2x - 0.5y = 2 find the intercepts Y intercept is when x is zero x intercept is when y is zero. plot those points, connect the dots.

69. ## Philosophy

key contributors to Christianity's's impact on philosophy http://ca.answers.yahoo.com/question/index.php?qid=20061025190551AAhv40b Here's an interesting response to this same question. There are some good ideas here to follow up on. Please note that we

70. ## CHEM

could someone please explain how to work out the highest fhydride and the highest flouride of ununhexium ,if the valance is 6 UUHF6 AND UUH6 ,I THOUGHT IT WOULD HAVE BEEN UUH2COULD SOMEONE EXPLAIN MANY THANKS hi Jill i sent you a message are you able to

71. ## CHEMISTRY

WHAT IS A CHEMICAL WITH A HIGH PH? A saturated solution of sodium hydroxide has a very high pH. IS SODIUM HYDROXIDE ALKALINE VERY

72. ## problem solving

One small and one large animal puzzle kit cost \$16 altogether. If the large kit costs three times as much as the small kit, how much does each kit cost? 4 and 12 A= large animalpuzzle kit. a= small animal puzzle kit. A + a = 16 A = 3a =================

73. ## science

what volume of helium would be in a balloon the size of a bottle. I answered your question below. Also, you should use the same name. It helps us keep questions straight. b + 2 = i am dum u didn't answer my queshtion how do i convert ton to pounds

74. ## Finding polynomial from zeros

How to find the polynomial degree 2 and zeros are (1+i) & (1-i) I would like to see the steps to solve this. Thanks. If those are the roots, then the following are factors: (x-1-i)(x-1+i)

75. ## Senior Govurment

What is the NAturalizashun program and how does it works? http://www.google.com/search?q=us+naturalization+process&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7 Ignore the first four links and read the rest. =)

76. ## math

Graph each of the following equations below using their intercepts?. 19x - 38y = -76 find the intercepts Y intercept is when x is zero x intercept is when y is zero. plot those points, connect the dots.

77. ## algebra

Graph each of the following equations below using their intercepts?. 0.2x - 0.5y = 2 find the intercepts Y intercept is when x is zero x intercept is when y is zero. plot those points, connect the dots.

78. ## MEXICAN CULTURE

WHAT ARE SOME OF MEXICO'S STAPLE FOODS? http://www.google.com/search?q=staple+food+mexico&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7 The library.thinkquest website is the most concise. =) I can say this right off of my head.

79. ## Subtracting real numbers

I always get stuck because I never know where to start, and the signs confuse me. Here's the problem: -10-(-8)+(-4)-20 Here's my first step... -20-10-8+4 -10-4 =-14 But, that's not right. I checked in the back of the book for the answer, and the answer is

80. ## science

What chemical breaks down fugi and bacteria?

81. ## quick question?

To what degree are “ordinary people” capable of giving direction to government? To a high degree. Anybody can tell the government what to do, and how to do it. Now, as for the government reacting, that is a very different question.

82. ## Science

What is more salty the gulf of mexico or the gulf of california? Why? You need to check this: Only one fresh water river flows into the GofCalifornia, but many flow into GofMexico. So...

83. ## Social!

How important is it that members of a society share certain views in common? Very important! If members of a society don't have some common views, they will not agree on common action, therefore making it difficult for them to work together. Certain views

84. ## algebra

Graph each of the following equations below using their intercepts?. 19x - 38y = -76 find the intercepts Y intercept is when x is zero x intercept is when y is zero. plot those points, connect the dots.

85. ## algebra

graph each of the following equations below using their intercepts?. 18x + 36y + 72 = 0 find the intercepts Y intercept is when x is zero x intercept is when y is zero. plot those points, connect the dots.

If someone made the below statements to you, how would you explain that the statements are misconceptions? Include whether you think mos Americans believe these misconceptions, and why or why not *Asian Americans and Pacific Islanders are a model minority.

If a=1, b=2, c=3, d=4, e=5, f=6 I need to find any combination of these letters that creates a number value more than 30. you can use the letters as many times as you need to. so far I can only think of effaced, but that is only 30.. any help?

88. ## Geog

why does each time zone extend 7 1/2 degrees oneach side of central meridian rather than extending from 0 degrees to 15 degree? I don't understand what you're trying to ask.

89. ## mdu

3 to 4 questions that would lead to the country jamaica We are not going to do your homework for you. Find about Jamaica, and make the questions up You could ask -- The capital of this country is _________ Its location is ____latitude and _____ longitude.

90. ## Math

wut iz, 10+10+4=4x x=? do what the equation tells you 1)add 10+10+4 2)since in the other side of the eqaution you have 4x, in order to leave the X alone you must divide by 4 on both sides and you will get______ that is the value of X. 4)in order to make

91. ## wut iz 3x+4=2x+7

x+? wut iz 3x+4=2x+7 Last question I answer with wut iz. Subtract 2x from both sides. 3x-2x+4=2x-2x+7 combine terms. x+4=7 subtract 4 from both sides. x+4-4=7-4 combine terms x=3 The idea here is to get the unknowns on one side (in this exammple the

92. ## math

HOW DO I FIND THA AREA OF A TRIANGLE? 1/2 times the base times the height.

93. ## Algebra

When the US Air arena is filled up to 80% capacity, it holds 13,600 people. How many would it hold when completely filled? ratio.. 80%:13600 ppl 100%:17000 ppl multiply 80 by 1.25 to make it 100, then multiply 13600 by 1.25 to get 17000. You can also

square of a certain number decreased by 9 times the number is 36 . what is the number Goodness. You have to start to try these, and let us critique. There is nothing like the mind working on its own. N^2-9= what bob, appreciate the sentiment, but if i

95. ## graph of a polynomial

Sketch the graph of 1/12(x+2)^2(x-3)^2 and make sure the graph shows all intercepts and exhibits the proper end behavior. I can sketch the graph but how do I do the second part? Thanks What does the function do at x= inf, or x= -inf. That is the end

96. ## factors

x^4 -3x^2 - 4 how to factor this? Thanks (x^2 - 4)(x^2 + 1)