Questions Asked on
May 28, 2008

  1. Science

    What is the light spectrum for copper sulfate? What color flame does copper sulfate create when it is reacted with fire?

    asked by Sammie
  2. Intermediate Algebre

    Solve for x: (x – 2)/5 – 3/2 = (x + 1)/10

    asked by happy
  3. Intermediate Algebre

    Solve for x: -2(x – 5) + 7 = x – 8 – 5x

    asked by happy
  4. Intermediate Algebre

    Combine like terms: -3x2 + 2x – 4x2 – 9 + 6x – 2x2 + 8

    asked by happy
  5. Chemistry, Arrhenius law

    The rate constant of a first order reaction is 4.60x10^-4/s at 350 degrees Celsius. If the activation energy is 104 kJ/mol, calculate the temp. at which its rate constant is 8.80 x 10^-4/s. So I think that I can use this version of the equation: ln (k1/k2)

    asked by Donna
  6. business

    identify the different components of the persuasive communication process.

    asked by Anonymous
  7. Math: Symbolic Logic!

    1. N 2. N v F 3. N -> K WHats the next line?

    asked by Danny
  8. Trig #1

    i don't know how to search for this question can somebody help plzz question is : List as many jobs as you that use trigonometry. net find out what specific training is necessary to be hired for eac job. This is to include the name of the major, the name

    asked by Tareena
  9. >>>>>>>>AP SCIENCE

    What is the light spectrum for copper sulfate? What color flame does copper sulfate create when it is reacted with fire?

    asked by Sammie
  10. College Algebra

    (x – 2)/5 – 3/2 = (x + 1)/10

    asked by Quawanna
  11. physics

    what are the different layers of fiber optics

    asked by sai
  12. health care

    What is a reform effort of socialization?

    asked by Anonymous
  13. eth 25

    Subordinate Groups: Native Americans, African Americans, Chinese Americans, Japanese Americans, Arab Americans, Filipino Americans, Korean Americans, Vietnamese Americans, Asian Indians, Hawaiians, Irish Americans, Polish Americans, Norwegian Americans,

    asked by redrose
  14. HCA230

    What types of reform efforts are being done to improve caregivers socialization skills?

    asked by Anonymous
  15. acc225

    Indicate whether a debit or credit decreases the normal balance of each of the following accounts: a. Office Supplies e. Salaries Expense i. Interest Revenue b. Repair Services Revenue f. Owner Capital j. Owner Withdrawals c. Interest Payable g. Prepaid

    asked by Tee
  16. proverb

    you've made your bed now you must lie in it

    asked by bella
  17. english


    asked by Sam
  18. english

    Are these sentences grammatically correct? The results should be healthier, cheaper, and tastier food. You spoke louder than ever - and we heard you! We are now ready to begin the hardest part.

    asked by Sam
  19. sci

    what is an atomic particles with a negative charge???

    asked by sam
  20. physics

    Consider the bending of light by the gravitation of the Sun as described by Newtonian physics. Light of frequency f passes at a distance d from the center of the Sun, which has a mass M. Show that the bending angle of the light is proportional to M/d.

    asked by Greg
  21. algebra

    Jennifer cut a board 2 m long into two pieces. One piece is 24 cm shorter than the other. Find the length of each piece. A group of backpackers hiked 38 km over three days. The first day, they hiked 1 km less than 3 times as far as the second day. The

    asked by Heather M
  22. Algerba

    If the sides of a square are increased by 3m, the area becomes 64m2. Find the length of a side of the original square. A 4 m by 6 m rug covers half of the floor area of a room and leaves a uniform strip of bare floor around the edges. What are the

    asked by Heather M
  23. chemistry

    hello, I have done a acid & base titration lab, with 0.1M vinegar (with unknown %tage acid) and 0.1 NaOH...I think the result came out ok, in avg, 25.21mL of NaOH have titrated w/ 30.0mL unknown %tage acid of vinegar. all I am given is Density of vinegar=

    asked by J Kang
  24. algebra

    identify the missing term. x^3-31

    asked by kim

    Hi, Im learning about polymers. I did a lab to make slime where I mixed PVA glue & water. I then added borax to some water in another container, and the poured off the water from the wet borax. I then added the borax to the glue/water solution. I have to

    asked by Heidi
  26. math

    Lula wants to round 76.24491 to the nearest hundredth. She first rounds 76.24491 to 76.245 and then rounds 76.245 to 76.25 and claims that this is the final answer. What is wrong with this approach?

    asked by Anonymous
  27. Biology

    A team of researchers do not use a full gene, but use a shortened version .. (which is coded for all necessary amino acids) Can anyone describe how the shortened version of a gene may be obtained ?? or provide a source to help please Thank you .... Totally

    asked by Eddie
  28. english

    What is the difference between poems and poetry?

    asked by eng
  29. Literature-Poetry

    Hi, I am doing a correspondence course and was wondering if the answers for my quiz were right, could you help please? My answers are identified by . I am aware that someone else has posted on this subject but posted wrong... I hope I did this correctly.

    asked by Susan
  30. Chem -plz check work

    suppose that 2.00 mL of 0.01 mol/L sodium sulphide is used to test a 50.0 mL sample of water containing 0.0005 mol/L mercury nitrate ions. What mass of precipate is formed? Na2 = Hg(NO3)2 --->2NaNO3 + HgS My Work: nNa2S=0.002*0.01 =0.0002 mol

    asked by Lori
  31. Chemistry

    A chemist wishes to determine the concentration of CrO4-2 ions electrochemically. A cell is constructed consisting of saturated calomel electrode (SCE) and a silver wire coated with Ag2CrO4. The SCE is composed of mercury in contact with a saturated

    asked by jake
  32. chem - check euqation please

    suggest a test chemical that can be added to the water sample to precipate the lead (II) ions. Show a chemical equation for the formation of the precipate you have chosen. I chose Hg(N03)2 so Pb2 + Hg(NO3)2 -->Pb(NO3)2 = Hg I know I still have to balance

    asked by Emily B
  33. arithmetic

    4mi=how many ft

    asked by brittany
  34. chemistry

    Are the three isomers for C2H2F2: cis-1,2-difluroethylene trans- 1,2-difluroethylene 1,1-difluroethylene or 1,2-difluroethylene or all these all the wrong names.

    asked by Robbin
  35. Algebra 1

    Rewrite the polynomial in descending order in its simplest form. here is #1 12x^2 y^2 z^3+2+24x^2 I think it should be writen 12x^2y^2Z^3+24x^2+2 then there is also question #6 I need help with is it x+y+xy+3x+4x^2 I think it should look like this

    asked by Nora
  36. geography/finals!!!

    What was te country of Bangladesh used to be known as?

    asked by webb.
  37. english

    In Romeo and Juliet, what is the significance of the death of Paris in Act V, scene iii?

    asked by Tiffany
  38. earth science

    if the base of a clound is located at an altitude of 2 kilometers and the top of the clound is located at an altitude of 8 kilometrs, is the clound located in the: troposhere statosphere or mesosphere

    asked by lea williams
  39. English

    Is a books plot and the theme the same thing? Thanks

    asked by Sue
  40. trig

    x^2-3y^2=13 x-2y=1 solve for x and y show all your work

    asked by Dianne
  41. HHS255

    Can some give me web sites because I can not find any, thanks As digital technology continues to influence Health Care and Human Service in the future, what does this mean for those who work and will work in these fields? What will workers in these fields

    asked by Danny
  42. Algebra

    what is the equation of the line that passes though the points (-3,4) and (-9,6)

    asked by Natalia
  43. math

    Seven employees of an office donated a total of $172.06 during a charity drive. What was the average donation?

    asked by Anonymous
  44. critical thinking

    why and how could you apply critical thinking when evaluating each of the following articles, advertising, media, and conversations

    asked by Anonymous
  45. Statistics

    I need to do a project for ap stats. It can be anything im interested in, and i have to perform some tests and all that I need some ideas!! Somthing that would be interesting..

    asked by MJ
  46. Calculus

    Find the point where the tangent to the curve is horizontal. f(x) = (x^2-2x+4)/(x^2+4)

    asked by Sam
  47. Calculus

    Use the quotient rule to find f'(x): f(x) = [(x+4)(x-5)]/[2x(x+3)] For the first I put them together? Can someone please complete this.

    asked by Sam
  48. Social Studies

    Who deliberately stayed away from the covention during a crucial vote so that his colleague could cast Maryland's vote with a smaller state? Was it George Washington, Luther Martin, Danial St.Thomas Jenifer, or Abraham Baldwin.

    asked by Nikki
  49. Presentations

    i'm doing a comercial for a cereal can you give me some ideas how i could convince the audience to by my cereal like things to say or acting. Thank you!

    asked by Anonymous
  50. medical language

    B. Define the following words or word parts. -ad -ior -ics Ana- Prone Supine viscera- transverse Hypo- Re- C. In this activity, break the medical word into its word parts. Using the word parts, create a definition of the word. Write a sentence using the

    asked by sue
  51. Social Studies

    Explain the Rights and Duties of A Group of Citizens, Tell of Their Civil Rights Compare Those Civil Rights to Those of U.S. Citizens -- i dun know what country to do.. if u have ne ideas plz help. If u suggest plz give me website where i can find info its

    asked by Dee
  52. ALGEBRA 2 (matrix equation)

    MATRIX EQUATION [ 3x ] [ 10+2y ] [ y ] = [ 5-x ] Solve for x.

    asked by Benny
  53. biology

    A scientist comparing organisms, in terms of biochemistry, might analyze ?

    asked by lawrence
  54. Calc

    I need help with these two questions. I'm not getting the same answer in the back of the book. f(x) = (1+x^4)/(x^2) for which I got (6x^5-2x)/(x^4) and the answer at the back is (2x^4-3)/(x^3) And this question I don't get at all. f(x) = (5-(1/x))/(x-3)

    asked by Sam
  55. CT

    I need help identifying the following things in the article. 1. Identify any examples of bias presented by the author. 2. Identify any areas that are vague or ambiguous. 3. Do you find the source credible? 4. Identify and name any rhetorical devices used

    asked by Curtis
  56. science

    describe the three ways in which an object can become charged?

    asked by Bob
  57. Geometry

    Find the area of a triangle whose vertices have coordinates (2,-5), (6,1), and (-3,-4)

    asked by Benny
  58. chem

    Given the length of Mg in cm and the mass per meter of Mg, how do i find the mass?

    asked by Kayla
  59. spanish

    how do you write in Spanish 275.000.000 and 25.350 and 3.930.000 and 56.460

    asked by Sherri
  60. social studies

    which colonies guaranteed religious freedom

    asked by BRI
  61. English

    1. He is at the back of the car. 2. He is at back of the car. (When a person is inside of a car, which expression can we use?)

    asked by John
  62. Science

    describe how a simple electrochemical cell operates? how are electrochemical cells related to batteries?

    asked by Bob
  63. econ

    True of False? E=exchange rate Suppose E $/euros = 3/2 and E $/pounds = 2, and there is no trade friction, the no arbitrage condition implies that E pounds/euros = 2

    asked by econ
  64. chemisttry

    Is the molecular geometry around the carbon atom(s) trans-1,2 difluroethylene a trigonal planar? I'm pretty sure it is, but I just need to varify it, if it is not a trigonal planar what is the molecular geometry around the carbon atom(s)?

    asked by Tom
  65. chemistry

    which orbitals in the molecular orbital diagram contain the lone pair electrons around O? My answer: one of the lone pairs on oxygen exist in an "s" orbital. two of the lone pairs exist in "p" orbitals not involved in bonding. -is this correct.

    asked by Andrew
  66. government

    What kind of case does the Supreme Court usualy hear?

    asked by KC 5th grade seiberling
  67. Algebra 2

    Which quadratic function has its vertex at (2,3) and passes through (1,0)? a. y = 2(x-2)^2+3 b. y = -3(x-2)^2+3 c. y = -3(x+2)^2+3 d. y = 2(x-2)^2-3 Could you explain why you got your answer, too?

    asked by Benny
  68. Science

    Is the sun a high mass star or a low mass?

    asked by Samantha
  69. science

    i have to make a solar oven for science class. what are some good materials or ways to make one that would get my oven the hottest?

    asked by Anonymous
  70. Algebra 2

    Solve -x^2=4x by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are located.

    asked by Benny
  71. government

    What kind of cases do the Supreme Court usualy hear?

    asked by KC 5th grade seiberling
  72. history

    To me everyone is the same and by having someone under someone else it sure brings out a lot of problems in life

    asked by nik
  73. history

    Identify the thesis statement in the article AIDS in Africa: Dying by the Numbers. What strategies does the author use to formulate his argument? What makes the argument so compelling?

    asked by nik
  74. Curious Maria

    what is the advantage of carrying out distillation processes under reduced pressures?? And ALSO can someone tell me the criteria used in selecting primary standards? i.e. NaHCO3, Na2CO3, KIO3, (COOH)2 and its salt as primary standard

    asked by Chemistry...distillation...simple yet weird quest.
  75. Stats

    a teacher teaches two sections (A and B) of a class. Both sections have a mean score of 75. Section A only has 5 students and they all received a score of 75, while section B has 15 students with a mean score of 75 with a variance of 12. What is the

    asked by Andrea
  76. Chemistry

    The question asks to determine the IUPAC name of a compound based on a diagram. I would choose the name: (Z)-5-ethyl-2,4,6-trimethyl-2,4-octadiene However, this doesn't match any of the given choices. They are: a. (Z,Z)-5-Ethyl-2,4,6-trimethyloctadiene b.

    asked by chemstudent
  77. Physics / Astronomy

    Here is my question: Consider the bending of light by the gravitation of the Sun as described by Newtonian physics. Light of frequency f passes at a distance d from the center of the Sun, which has a mass M. Show that the bending angle of the light is

    asked by Barry
  78. econ

    Exporters suffer when their home currency depreciates and prosper when it appreciates. True or false? and why?

    asked by econ
  79. Geometry

    Find every possible area for a square drawn by connecting dots of a 3 dot by 3 dot grid.

    asked by Heather
  80. Geometry

    If I have a baseball diamond and the question is how far much a ball be thrown to get a player out a second base? Thanks.

    asked by Heather
  81. English - question

    Ms. Sue, What kind of strategies can I use to revise my paper?

    asked by rose- Ms. sue
  82. trig

    If A+B+C=^(^=180) prove that sinA + sinB - sinC = 4sinA/2 sinB/2 cosC/2

    asked by ody
  83. econ

    The real exchange rate between Canada and U.S. must be unity if LOOP is found held for all the common goods that are consumed in both countries. True or false?

    asked by econ
  84. math

    how do you change fractions to decimals please help, i need this answer my birthday is tommorrow

    asked by michael
  85. English

    I want to know if this sentence contains sexist language: The article pointed out that anybody who can get his doctor to meet him at the office is fortunate.

    asked by Anonymous
  86. trig

    find the value of : sin18'

    asked by ody
  87. chem

    if the length of Mg is 2.7 cm and the mass per meter of Mg is .981 how do i find the mass of the Mg?

    asked by Kayla
  88. english -

    Ms. Sue, Also, what can make a feedback valuable to me.

    asked by rose- Ms. sue
  89. ashford

    In the number 854, 263, 189, what number tells the numbe of million

    asked by shirely
  90. Computer

    What is the meaning of 'Tab' on the tab key on the keyboard?

    asked by John
  91. mixture problem

    Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2-liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add?

    asked by Marie
  92. politics

    Where can I find the personalities of the presidential candidates (Clinton, Obama, McCain)?

    asked by Johnny
  93. psy-

    Biomedical and psychotherapy are two basic approaches to treating psychological disorders. A number of approaches fall under the category of psychotherapy, but they all include the following four essential characteristics: 1. systematic interaction between

    asked by rose- Ms. sue
  94. geometry

    What are if then statments .Ill need examples please .its for a project .

    asked by Joshua
  95. Science ( the sun)

    Is the sun a high mass star or a low mass star?

    asked by Samantha
  96. social studies

    What is the most populous country in the world?

    asked by Jillian
  97. Computer

    With Camtasia Studio 3.1.3 for Free, we can make videos. By the way, how can I get rid of the logo on the videos? Are there any ways to remove the logo when we make videos?

    asked by John
  98. chemistry

    Explain using various acid-base theories (Bronsted Lowry, Lewis, Arrhenius) why the solutions of aluminum and zinc nitrate are acidic. I know why an acid is an acid is in general, but I'm not sure if there is supposed to be a special condition when NO3 is

    asked by bill
  99. Math

    solve 3(4)^x for x=2.3 Do I do the 3x4 part first, or do I raise 4 to the 2.3?

    asked by Maddie