Questions Asked on
December 16, 2006

  1. Chemistry

    Can you please answer this question: Both water and carbon dioxide are triatomic molecules. Explain why one of these molecules is polar and the other is nonpolar? Carbon dioxide is linear :C::O::C: and therefore has no net electrical dipole. Water is a

    asked by Beautiful
  2. Chemistry

    I know how to find half-lives, but I have trouble finding the length of time it would take for the concrentration of X to decrease to Y% of its initial value. For example, this is one of the problems: Methyl isocyanide, CH3NC, isomerizes when heated to

    asked by Rachel
  3. Physics

    A 250 g block is dropped onto a relaxed veritcal spring that has a spring constant of k=2.5 N/cm. The block becomes attached to the spring and compresses the spring 12 cm befor momentarily stopping. While the spring is being compressed, what work is done

    asked by Me
  4. chemistry

    does chlorine or carbon have greater ionization energy? I would expect it to be harder to pull an electron away from 17 + charges on chlorine than 6+ charges on carbon; although the outer electron is farther away in Cl. You can look these things up in a

    asked by Carter
  5. chemistry

    What is the maximum number of hybrid orbitals a carbon atom can form? Is it 4 because carbon has 4 valence electrons? yes.

    asked by Carter
  6. social studies

    what was the magna carta????. help with study guide for midterm in social studies It is an written agreement signed by King John of England in 1215, limiting the powers of the King. It is one of the most important legal documents leading to the development

    asked by jordan
  7. physics

    A person pushes a 10 kg box from rest and accelerates it to a speed of 3.2 m/s with a constant force. If the box is pushed for a time of 2.6 s, what is the force exerted by the person? force*time=mass*changeinvelocity solve for force.

    asked by mel
  8. chem

    What type of hybridization corresponds to what type of bond? numerous kinds. sp3 is tetrahedral, sp2 is trigonal planar, sp is linear, d2sp3 is octahedral, etc. I'm sure these are in your text. But these hybrids of coordination number 4, 3, 2, and 6 are

    asked by john
  9. Abnormal psychology

    what are the tenets of pharmacology I found more then three "basic tenets of pharmacology" online: The dose should be no larger than that necessary for the desired effect The drug molecules must get so close to the cellular molecules that the function of

    asked by Carol
  10. chemistry

    How do you name this acid? HClO2 I found the answer but now I need to know N2F4. chlorous acid dinitrogen tetrafluoride

    asked by Carter
  11. algebra

    How do you find the relative maximum and minimum of a graph using a graphing calculator? Specifically, a Texas Instruments 82, if possible? Thanks! Plot the graph. Look at the graph, look the points of maxim (slope=0) and the min (slope=0). or

    asked by Shirley
  12. math,algebra

    how do you solve this problem 3 and 1/3 subtracted by 1 and 2/3? Change the mixed number back to fractions with a common denominator. That would give you 5/3 subtracted from 10/3. How many thirds are left?

    asked by jasmine20
  13. Math,algebra

    Can someone explain to me how to solve the following. Directions:Multiply and write the answer in simplest form. 4/10 divided by 10/4? 4/10 / 10/4 change to mulitpcation by flipping the last fraction: 4/10 * 4/10 = 8/20 8/20 = 4/10 = 2/5 luke, I'm sorry i

    asked by jasmine20
  14. MATH, ALGEBRA

    CAN SOMEONE CORRECT THIS: lIST ALL THE FACTORS OF 16? mY ANSWER: 1,2,4,8 What is the prime factorization of 40? My answer:2x2x2x5 almost- 1, 16, 2, 8, 4 Isn't sixteen a factor of 16? You are correct on the prime factors of 40 should i leave the 16 as part

    asked by jasmine20
  15. bobpursly,math ,algebra

    Can you explain to me how is 3and 1/3 minus 1 and 2/3 equal to 1 and 2/3 3 1/3 = 10/3 -1 2/3 = -5/3 -------------- 10/3 - 5/3 = 5/3 5/3 = 1 & 2/3 Another way. 3 1/3 = 2 4/3 -1 2/3 = - 1 2/3 ---------------- 2 - 1 = 1 and 4/3 - 2/3 = 2/3 so final answer is

    asked by jasmine20
  16. Writing Assignment--PLEASE HELP!!!

    I have to write a letter report on the topic of investment opportunities using the approiate approach and organizational pattern. I need help! Are there any sites to help? Subject clarification. This student needs assistance from someone who understands

    asked by Sissy
  17. math

    I need help on a math question. It says to write two fractions with a product between 10 and 11. Does anyone know what the answer is? Thanks. THere are several million ways to do this: 21/2 * 1/1 21/3 * 3/2 and so on and so on.

    asked by scrgrl4
  18. Math

    Simplify. (5x2 + 3x - 7) - (x2 - 7x + 4) Simplify. (5x^2 + 3x - 7) - (x^2 - 7x + 4) distribute - sign to get -x^2 +7x -4 put on top of one another and add 5x^2 + 3x - 7 -x^2 + 7x - 4 ------------- 4x^2 +10x -11

    asked by Lily
  19. chemistry 12

    what is the relationship between ka and kb? Kw=ka*kb

    asked by luke
  20. CHEMISTRY

    What type of reactant typify compostion reactions? You need to clarify your question for me. I haven't heard of composition rreactions. Perhaps I know it by another name. In the real world, there is no "typical" reactant in composition reactions. In the

    asked by PLEASE HELP
  21. chemistry

    How does the electrical conductivity of metals support the electron sea model? You have a "sea of electrons" and moving electrons through a metal provides an electric current. I assume you can take it from here.

    asked by chr
  22. spanish

    P.D. (P.S.) I found 2 4-letter words: bien/mal. Count those spaces carefully one more time? another unscrambler... it's a "message" one: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ icsoasbelganueucrono(with an accent on 1 "o") i am studying childhood

    asked by SraJMcGin
  23. Abnormal psychology

    what are some phamacological and nonpharmacological variable that infuence an individual's response to drugs Light intensity and duration, foods, and hormone levels.

    asked by Carol
  24. Social Studies

    My teacher has assigned me to make a new world. I have created a 'enemy' and she said I need a reason the enemy became the enemy. Have any suggestions? I can be disputed territory or ideologies. Another possibility is that the enemy wants to appropriate

    asked by Carson
  25. math

    squareroot of 24 Type this in the google search window: sqrt 24

    asked by Margie
  26. math exponents

    x to the - power x to the fraction power x to the -fraction power how are they different? 2-2=1/22=1/4 21/2= sqrt 2 = 1.414 2-1/2=1/21/2=1/1.414=0.707 math is really gay u no what is the historical facts on exponets

    asked by stupid
  27. drbob222, math ,algebra

    can you explain to me the following problem , ms.sue and others are trying to help me but they are making me more confuse. Is there any short cuts to the following problem. Directions:multiply and write the answer in simplest form. 4/12 times 10/4 first,

    asked by jasmine20
  28. Health

    I need a 14 letter word, the 4th letter is an o for a crossword puzzle that is a drug that slows down body functions, including breathing and brain activity. Thanks Thank you for using the Jiskha Homework Help Forum. Hopefully, you are looking for:

    asked by Kyle
  29. emergency due before midnight please!!!

    Dangling Modifiers If your baby does not like cold apple juice, it should be heated. Your answer: 1. Dangling Modifiers When they are fresh, eating oranges can often keep away the cold virus. Your answer: 2. Predication Our plans for tomorrow should begin

    asked by Jen
  30. Chemsitry (Check)

    Fill In The Blanks I have Sharing for the first blank and Single for the second. A _______ pair of valence electrons consitutes a _______ covalent bond. Shared/Double. See http://www.chemguide.co.uk/atoms/bonding/doublebonds.html I would have gone with

    asked by Bryan
  31. julie&shawn, math

    The problem was actually 3 1/3 - 1 1/2= 10/3-3/2= 20/6-9/6=11/6, or 1 5/6 How did you get 1 and 5/6 from the problem: 3 and 1/3 minus 1 and 2/3 3 1/3 = 2 4/3 - 1 2/3 _____________________ 1 2/3 1 2/3 is the answer. Did you maybe copy the problem wrong?

    asked by Julie & Shawn
  32. History

    Who are israel's 3 most important musicians. I can't find this answer anywhere, I've had to look at almost every website. Try these sites. your word "important" musicians is ambigous. http://en.wikipedia.org/wiki/List_of_Israeli_musical_artists

    asked by Blaine
  33. social studies

    Can someone please help me with this question?: What is the United States doing to improve Iraq's infrastructure? Trying to pay citizens there to rebuild it as fast as some of the other citizens destroy it. Guess who is paying? So, the US is paying

    asked by Tanya
  34. math,algebra

    can someone correct this for me. Directions: Subtract 4 and 1/3 minus 1 and 1/4 my answer: 3 and 1/3 3 is right, 1/3 isnt. 1/3 - 1/4 = get common denomators... 4/12 - 3/12 = 1/12.

    asked by jasmine20
  35. math, algebra

    can someone correct this forme Directions:Add 3 and 1/5 plus 2 and 1/4 My answer: 5 and 9/20 correct

    asked by jasmine20
  36. Random Variable

    Fxy (x,y) = k -2

    asked by John
  37. math, algebra

    can someone correct this for me 3 and 1/3 minus 1 and 1/2 My answer: 1/3 1 5/6

    asked by jasmine20
  38. civics

    What are the actual roles of aged people in Asia,Africa and America? This is such a broad question -- covering millions of people on three continents -- that a definitive answer isn't possible in this short space. First we need to define what you mean by

    asked by lore
  39. spanish

    If you told us which vocabulary you are currently studying it could help narrow down the words. can someone help me unscramble these? it's in spanish. capetlusidr tabonca tishces tconserede well, i figured out all of the above, except for "tconserede" i'm

    asked by Carter
  40. Luke, Math , algebra

    Sorry it was a type. For the problem multiply and write answer in simplest form. 4/12 multiplied by 10/4 My answer: FOr what i understood i only got to the flipping step which is 4/12 multiplied by 4/10 now what step do i do. you mulitply to top (4 * 4 =

    asked by jasmine20