Questions Asked on
January 18, 2009

  1. Question

    Okay just wondering, is the 'bibliography' and 'credits' the same thing? thanks./

    asked by Larry
  2. physics

    If the grating is not properly aligned, what are the consequences on the average angular displacement and wvelength reading? Please elaborate. How do grating constants affect the observed spectral lines?

    asked by grace
  3. Chemistry

    What mass of ethylene glycol C2H6O2, the main component of antifreeze, must be added to 10.0 L water to produce a solution for use in a car's radiator that freezes at -23.3 degrees Celsius? Assume the density for water is exactly 1 g/mL

    asked by Tanya
  4. physics

    Why must the spectrometer be aligned each time a grating is replaced?

    asked by grace
  5. Chemistry..Please Help

    1. The vapor pressure of dichloromethane, CH2Cl2, at 0C is 134mmHg. The normal boiling point of dichloromethane is 40C. Calculate its molar heat of vaporization The answer is in kilojoules per mole. I know i use the Clausius-Clapeyron equation but i don't

    asked by Saira
  6. 6th math

    Find perimeters , use formula; p=(2 x l)+(2 x w) 5m by 650cm

    asked by Melissa
  7. math

    There are 42 houses on Main Street. Three less than half of the houses are made of brick. Of the rest of the houses,3/4 are painted white and the rest painted other colors. How many are other colors

    asked by mason
  8. MATH PLEASEEEEE

    A)If a license plate consists of 2 letters followed by 3 digits or 3 letters followed by 2 digits, how many license plates can be created? B)You are given an exam with only 9 questions. if each question has 4 choices, howmany different possible answers can

    asked by Kennedy
  9. chem

    I have a problem i don't get... H3PO4+3NaOH -> 3H2O+Na3PO4 How many moles of Na3PO4 will be produced from 1.7 moles of NaOH in the presence of excess H3PO4?

    asked by Bob
  10. chemistry

    an electrochemical cell uses Al and Al+3 in one compartment and Ag and Ag+ in the other write a balanced equation for the rxn that will occur spontaneously in this cell would that just be Al + Al+3 + 2e --> Ag + Ag+ ?

    asked by erin
  11. French work

    1. Mon grand-pere, Rudy a quatre-vingt-un ans. Il est brave et aimant. 2. Ma grand-mere, Dorothy a quatre-vingt ans. Elle est amusante et adorable. 3. Mon pere, Gary a cinquante-trois. Il est fort et brun 4. Ma mere, Theresa a cinquante-duex. Elle est

    asked by Alex B.
  12. READ THIS FIRST

    could you please translate in english to make sure you can read it correctly thank you so much GOD BLESS YOU

    asked by Alex B.
  13. IT 221

    As a project manager you are asked to facilitate a lessons learned session as part of the project termination process. how would you facilitate this session and what are some quidelines you would use? How would you incorporate and document the information

    asked by Sam
  14. social

    how china changed politically and economically during the Ming dynasty?

    asked by Anonymous
  15. chemistry

    What is the condensed formula for 1-butanol. I know the condensed formula methanol, ethanol, 1-propanol and 1-hexanol. methanol CH3OH ethanol CH3CH2OH 1-propanol CH3CH2CH2OH 1-hexanol CH3(CH2)5OH

    asked by jen
  16. CALCULUS

    Use the Midpoint Rule to approximate the integral: (10x-3x^2)dx from -1 to 5 with n=3

    asked by jeremy
  17. science - Please Answer Quickly !

    If I Had A Saucepan And A Spoon. And The Water Was Heating.. How Does The Energy Transfer From The Hob To The Spoon. What Is Conduction, Convection & Radiation ? Please Help .. Thank You .x

    asked by fern
  18. British Literature

    Question: How did the Industrial Revolution affect the poetry of William Blake and William Wordsworth? - Okay, I'm not quite sure if I understand this correctly. Wasn't Wordsworth a supporter of the IR? And wasn't Blake thought to see the IR as a prophetic

    asked by TS21
  19. Science

    I know Im Repeating The Question .. But I Really Need Help . x What Is Conduction , Convection and radiation ?

    asked by fern
  20. French

    Hi There, Can you please look this over and see if i translated the english text correctly into french. 1.) For my final evaluation, I researched on a francophone country. -Pour ma evaluation finale, j'ai recherché sur un pays de la francophonie. 2.) The

    asked by Sabrina
  21. French

    Hi there, can you please see if i have translated the following text correctly into english. Thank you. 1.)For my final evaluation, I researched on a francophone country. -Pour ma evaluation finale, j'ai recherché sur un pays de la francophonie. 2.) The

    asked by Sabrina
  22. To: Sabrina French

    Sabrina i hate to ask you think but do you think you have time to check my french homework??

    asked by Alex B.
  23. History

    explain and defend what you believe to be the greatest challenge facing Nigera in the 21st century such challenges include: overcoming past corruption getting away from a petroleum-based economy diseases such as AIDS and malaria All I need is one of these

    asked by Anonymous
  24. math

    how many distinctly different arrangements are possible using every letter in the word: intelligence

    asked by Anonymous
  25. math

    If X= -8.4 what percentile score is equivalent to the lower quartile? what percentile score is equivalent to the upper quartile? what percentile score is equivalent to the median?

    asked by Anonymous
  26. math

    How many 4-letter words can be formed by slection four letters from the word UNIFORM? I don't understand how to do this at all. I know the answer is 840 but why? i have no idea how to simplify this... can anyone help? (x+3)!/x+3 (x-2)!/x!

    asked by Kennedy
  27. math

    in the expansion of (x^2+3)^10 what is the coefficient of the term containing x^16. I did 10c4 * 3. But i am not getting the correct answer. can someone please show me how to do this. thanks for your time!

    asked by Kennedy
  28. science

    what is a virtual image?

    asked by chinki
  29. Chemistry- test for presence of sulphate

    I have a solution of Fe2(SO4)3, i.e. iron(III) sulphate solution. To test for the presence of the sulphate anion, nitric acid & barium nitrate were added. A white precipitate was obtained. Please help to check if the following equation is correct for the

    asked by june
  30. Math 115 17

    how do I simplify (-3)^3 - (-8)(-2)

    asked by Deb
  31. math

    how do we do this..... Your school is planning to bring 193 to a competition at another school. there are eight drivers available and two type of vehicles, school buses and minivans. the school buses seat 51 people each, and the minivans seat 8 people

    asked by Anonymous
  32. Dr. BOB chemistry help please!

    hi At a particular temperature, K = 1.00 102 for the following reaction. H2(g) + I2(g)= 2 HI(g) In an experiment, 1.73 mol H2, 1.73 mol I2, and 1.73 mol HI are introduced into a 1.00 L container. Calculate the concentrations of all species when equilibrium

    asked by Enrique
  33. "Classical music student"

    Please ask a specific question. That is a huge general area. Here are some very general sites: http://en.wikipedia.org/wiki/Classical_music http://www.classicalarchives.com/ http://www.classical.net/

    asked by GuruBlue
  34. Algebra

    In 1990 th elife expectancy of males in a certain country was 62.6 years. In 1996 it was 65.9 years. Let E represent the life expectancy in a year t and let t represent the number of years since 1990. The linear function E(t) that fits the data is E(t) = t

    asked by Lisa
  35. science

    why is the arrival time for the p wave always earlier thsn the ariivsl of the same seismograph station?

    asked by vero
  36. music

    what artist have sung in two part sectors and what are the names of the songs

    asked by Anonymous
  37. CHEMISTRY URGENT PLZ HELP

    Write a balanced equation for the following reduction-oxidation reaction. SO3(2-) + MnO4(-) --- SO4(2–) + Mn(2+) can someone help me step by step??

    asked by kevin
  38. economics

    Does a change in price create curve shifts?

    asked by Kay
  39. Intermediate Algebra

    Simplify: -5^2 + 2[64 /(6 - 10)^2] = -5^2 + 2[64/(-4)^2]= -5^2 + 2[64/16]= -25 + 2 [64/16]= -25 + 2 (4)= -25 +8 = -17 Is this Corect?

    asked by Jennifer
  40. Sociology

    I have already answered these questions but I am a little uneasy of the answers. Could someone please read them and provide feedback and if possible a little more detail for explainations? Q: What is the meaning of stratified? A: To classify or separate

    asked by TOM
  41. microeconomics

    what is meant by the term"utility" and how does the idea relate to purposeful behavior?

    asked by Jean
  42. English (Follow up From Yesterday)

    For my english class we have to write a one page essay about What is the most significant gift that we wish to give ourself this semester. I posted what I had yesterday and you responded back. I took your advice and changed my entire paper. I was wondering

    asked by Michele
  43. algebra

    y=x-5 4x+y=-12

    asked by jasmine
  44. To:Sabrina

    Do you think you have time to check my french homework. thanks

    asked by Alex B.
  45. French for Sabrina & Alex

    Sorry, but my rescue animals MUST be fed. My eyes have had it for right now. Perhaps after I take care of my animals, I can see better. At least, I WILL be back and check your work before I go to bed. Sra (aka Mme)

    asked by SraJMcGi
  46. math for teachers

    John is building bookcase 73 3/8 inches tall, he wants 5 shelves equally spaced. Where does he drill holes (space between shelf)? Shelf is 3/8 inch thick. Do I add 3/8 for top and bottom? or is shelf 5 bottom? I do not have a clue.

    asked by Melissa
  47. Powerpoint (URGENT)

    I need to do a powerpoint on a career. I have to find information on the web about that career. One of the slide requirements was to include a bibliography. So, I'm wondering what does a bibliography for a powerpoint include? Do I need to include the

    asked by Larry
  48. URGENT CHEM

    Write a balanced equation for the following reduction-oxidation reaction. SO3(2-) + MnO4(-) --- SO4(2–) + Mn(2+) numbers in parenthesis means the charge

    asked by max
  49. Math 115 23

    Multiply 3 1/6 X 2 9/11 X 4 6/17. Write your answer in simplest form.?

    asked by Deb
  50. earth science

    why is the arrival time for the p - wave earlier that the arrival of the s-wave the same seismograph station?

    asked by Anonymous
  51. Algebra

    z^5-28z^3+27z=0 How do you use variable substitution and factoring to find all of the roots of this equation? I know how to do it if the z would have only been to the fourth power, but how do you do it with an odd numbered power like this? Thanks!!

    asked by Tatiana
  52. naming chemical compounds

    what is the dihydrogen phosphate ion? and the answer is not H2PO4-, H2PO4, HPO4... =(

    asked by Spencer
  53. maths

    what is 28.11 to 3 significant figures

    asked by trigger
  54. CHEMISTRY

    Write a balanced equation for the following reduction-oxidation reaction. SO3(2-) + MnO4(-) --- SO4(2–) + Mn(2+) can someone help me step by step??

    asked by kevin
  55. 9th grade, Socials

    what is a colonie?

    asked by URGENT
  56. French

    When you are using a boy in french do you have to take off the "e" when you tell their ages This is what I mean Girls- Elle Boys-Ils

    asked by Spongebob
  57. algebra

    Mrs. Stewart has 8 pair of sandals, 6 pairs of pants and 12 t-shirts. While getting ready to go out for ice-cream, she exclaims, "I have nothing to wear!" Mr. Stewart respond by telling her exactly how many different outfits she could wear if each outfit

    asked by angela
  58. fiance concept

    Sue and Tom are assistant professor at a local university they both take home $40,000 per year after tax sue is 37 years old and tom 35 years old they have two children karen 13 mike 11 if one of them die they estimate that the remaining family member

    asked by bonnie
  59. 10th grade

    how do you find the zeroes of y= 2x(squared)-7x+15

    asked by Lily
  60. Chem/Bio/Nutrition

    Why is the experimental Cal/g value usually less than the Cal/g value calculated from the Information on the nutrition label?

    asked by Lena
  61. math

    you are given an exam with only 9 questions. if each question has 4 choices, how many different possible answers can you have for the entire exam?

    asked by Kennedy
  62. biology - evolution

    Is evolution an individual or population level phenomenon? Explain.

    asked by Anonymous
  63. Chemistry

    What am i supose to do here? A chemist performs the following experiment: 2FeCl3 + 3CaCO3 ---> Fe2(CO3)3 + 3CaCl If he starts with 105g FeCl3 and excess CaCO3 how many grams of CaCl2 will he obtain? Thanks, ~Nick

    asked by Nick
  64. chemistry solubility

    All compounds that contain a nitrate ion (NO3-) or acetate ion (C2H3O2-) are soluble. This is a rule for solubility. Why aren't they soluable. what does charge density for acetate ion have to do with it?

    asked by jen
  65. critical thinking

    what fallacy is takes someone with a really big heart to give to our charity, and you seem like someone who cares more than most.

    asked by Kathy
  66. French 1

    I'm doing a family tree for french and I was asking if anyone could check my work. If it wouldn't be too much trouble thanks

    asked by Alex B.
  67. French 1

    Can anyone check my french work please??

    asked by Alex B.
  68. French

    I am so sorry SraJMcGi but i have the other half of my project that i just finished. Do you mind checking if i have translated it correctly. Your help is greatly appreciated. 1.)Secondly, the culture. - Deuxièmement, la culture. 2.)Djiboutian attire

    asked by Sabrina
  69. math

    is this a radical expression ã12-ã27+ã75= please help

    asked by Julissa
  70. math

    what percentile score is equivalent to the lower quartile? is it .25.

    asked by vero
  71. English

    I am having such a hard time writing a summary for an article. Please help!

    asked by lou
  72. history

    who was against jacksons indian removal act (like what groups of people or states) besides the indians themselves?

    asked by kayla
  73. math

    what is the probability of choosing an odd number from all postive number less than 16. is it 8.

    asked by Anonymous
  74. health

    i need help with my project i need at least 65 or 5 advantages and disadvantages of bein a neonatal nurse please help me thanks

    asked by diana
  75. math

    what percentile score is equivalent to the lower quartile? but here i just have been asked that. like i have not being given any mean or asked to solve one. what do i do?

    asked by Anonymous
  76. 5th grade

    example of a food chain in the ocean

    asked by Kayleigh
  77. English

    Supposing that if A is equal to 1, b=2,etc. all the way to z equaling 26, what word or words starting with a B and a C total 100?

    asked by Val
  78. chemistry

    We did an experiment on Quantitative Analysis of Soda ash by Double-Indicator Titration. What is the cause of carbonate error and its effect on the calculated values obtained in standardizatin and sample analysis?

    asked by mitch
  79. english -yr 8

    im doing a school project about william shakespeare .one of my questions is Elizabethan theaters (past times ) does that mean to explain why people went to the theaters and what were the theaters like? sorry to sound thick ! thanks for help

    asked by Martha
  80. French

    Hi there, I know this is so last minute, but i really need this to be edited tonight for my exam. I posted it earlier, but i don't know if you saw it .If you could please check if I translated the English correctly into French, you’d be of great help. I

    asked by Sabrina
  81. Psychology

    Discuss the physiological myths about hunger and satiety.

    asked by Micky
  82. Algebra

    What do you do in synthetic division when there's a two digit number? For example, this is what I'm synthetically dividing 3 2 5 7 3 3 1 8 8 times three is 24, so what should I do? Thanks for your help Tatie

    asked by Tatiana
  83. Math 115 18

    Find the best buy for tomato juice: (a) 8 oz. for $0.37 (b) 1 pt 10 oz for $1.19 (c) 1 qt 14 oz for $1.99

    asked by Deb
  84. Law

    In a one page response, describe where the legal system fails to deal with domestic violence cases. What, in your opinion, could be done differently to prevent a repeat of this type of violence in abusive relationships?

    asked by Mehnaaz
  85. math

    what is 1+4357890+547574x56-3000?

    asked by Anonymous
  86. Acct

    If a transaction is needed for, Completed and delivered a set of plans for a client and collected $5,700 cash. How do you know if this goes into the Accounts recievable or the Fees Earned account?

    asked by 10SoccerMom
  87. science

    What are the two major functions of the appendicular skeleton?

    asked by Rachel
  88. social

    roman's consuls are equal to what in the US?

    asked by Anonymous
  89. english

    Does anyone know anything about Blank Verse, when tlaking about poems not rhyming. And the rhythm being iambic? Breaking down a sentence using this method and sybombls?

    asked by Angela
  90. History

    this is not for homework but I'm just curious. Which of the things doesn't the president do: Enforce laws, declare war, grant pardons, or give state of the union address. thanks

    asked by Spongebob
  91. Intermediate Algebra

    Simplify: -225 / 15 - 7^2 / 6(-4)-3(-8) = -225 / 15 -49 / -24 - 24 = -15 - 49 / -48 = -64 / -48 = 1 1/3 = 4/3 Is this correct?

    asked by Jennifer
  92. History

    explain and defend what you believe to be the greatest challenge facing Nigera in the 21st century

    asked by Anonymous
  93. To Kennedy: math

    I've removed your post. Please tell us how you think you should solve these problems -- or at least a couple of them -- and we'll be glad to help you.

    asked by Ms. Sue
  94. Intermediate Algebra Solve

    3-6(t-7)= 8-5(2t+1) 7x+26-5x = 5x-2+x I am not sure how to start these. Any help?

    asked by Jennifer
  95. biology

    Can two different species occupy exactly the same niche? What happens?

    asked by biology
  96. Intermediate Algebra Simplify

    Simplify: -225 / 15 - 7^2 / 6(-4)-3(-8) = -225 / 15 -49 / -24 - 24 = -15 - 49 / -48 = -64 / -48 = 1 1/3 = 4/3 Is this correct?

    asked by Jennifer