Questions Asked on
October 17, 2008

  1. chem

    A 25.0 g aluminum block is warmed to 65.2 C and plunged into an insulated beaker containing 55.3g of water initially at 22.0C. the aluminum and water are allowed to come to thermal equilibrium. Assuming that no heat is lost, what is the final temperature

    asked by natash
  2. chem

    consider the following thermochemical equation for the combustion of acetone C3H6O(l)+4O2(g)---->3CO2(g)+3H2O(g) delta H rxn=-1790kJ. If a bottle of nail polish remover contains 179mL of acetone, how much heat would be released by its complete combustion?

    asked by natash
  3. Math Measurements

    If the length (L) of the prism is 10 inches, and each rectangular face has a width (W) 2ã3 of inches, determine the total surface area of the prism in square inches. Round your answer to the nearest inch.

    asked by Erika
  4. Math: Fractions

    A group charters 3 identical buses and occupies 4/5 of the seats. After 1/4 of the passengers leae, the remaining passangers use only 2 of the busses what fraction of the seats on the two buses are now occupied? assume number of seats on all buses is 3x

    asked by Wilson
  5. Physics

    A 4.60-m-long, 580 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 72.0 kg construction worker stands at the far end of the beam. What is the magnitude of the torque about

    asked by Sandhya
  6. CHemistry- MIDTERM TODAY PLEASE HELP

    Hey i have a question regarding disproportionate reactions: Permanganate ions MnO4 reacts with oxalic acid, H2C2O4 in acidic aqueous solution, producing manganese(II) ions and carbon dioxide. The skeletal equation is MnO4^-(aq)+ H2C2O4(aq)--> Mn^2+(aq)+

    asked by Sara
  7. Economics

    Which of the following statements is true for a capitalist economy ?

    asked by Mary
  8. Physics

    Identical twins, each with mass 56.2 kg, are on ice skates and at rest on a frozen lake, which may be taken as frictionless. Twin A is carrying a backpack of mass 12.0 kg. She throws it horizontally at 3.50 m/s to Twin B. Neglecting any gravity effects,

    asked by Sandhya
  9. Math

    How do I solve these problems, I really need help. Solve by substitution method 6x+5y=17 x=53-8y Solve by elimination method 2x+3y=5 4x+6y=10

    asked by Amy
  10. 6 grade math

    How many whole numbers are there between 99 and 1000?

    asked by Bob
  11. math

    i can't figure out this problem. the GCF of two numbers is 479. one number is even and the other number is odd. neither number is divisible by the other. what is the smallest that these two numbers could be?

    asked by jennifer
  12. English

    1. He is rather an old man. 1-2. He is a rather old man. (Are both OK and grammatical?) 2. She is quite a good pianist. 2-2. She is a quite good pianist. (Are both OK and grammatical?) 3. I feel better than last night. (What is the postive degree of

    asked by John
  13. Math

    Hi guys, In the question "It is given that P (0, 3), Q(7, 5), R(9, -2) and S are vertices of a square. A circle A passes through the points P, Q, R and S. Find the equation of this circle. Hence or otherwise find the equation of circle B which is the image

    asked by Joshua
  14. problem solving

    Please help me figure out how to solve this problem I have researched and racked my brain and still no luck.I don't think there is enough information givin. Problem In 1054, Chinese astronomers observed the light from a supernova in the night sky. This

    asked by lynn
  15. math

    Elena's daughter sold 120 boxes of girlscout cookies. She was told that this amount represented 5% of the troops sale. How many boxes did the troop sell?

    asked by Odessa
  16. physics

    how much time does it take for a student running t an average speed or 5.00m/s to cover a distance of 2.00km?

    asked by Michelle
  17. Sociology

    Hello, I need help finding statistics for this assignment. I have tried to google for some, but maybe I am doing this wrong. Here is the assignment: Compose a 200- to 300-word response to the following: o Explain urban growth trends in the world’s

    asked by Jordon
  18. COM 220

    • Create a full-sentence outline that includes effective arguments and counterarguments to support your thesis. (Note: Outline only the body of your paper.) Remember to avoid bias and fallacies and to include rhetorical devices that strengthen your

    asked by MIKE T
  19. philosophy

    What is the distinction between deductive and inductive arguments? Give an example of each to make your explanation clearer.

    asked by Sally
  20. Psychology

    I am writing a paper and am stuck on one part can some give me an idea what i am needing. paper in which you analyze the function of emotions as motive. Be sure to address the following items on your analysis: This is the part I am stuck on Analyze at

    asked by TOM
  21. MATH

    in a scalene triangle, the measure of the largest angle is four more than two times the smallest and the other angle is two more than the smallest. what is the measure of the largest angle ? 4x + (2)2x +2x Am I going in the right direction with the above

    asked by Rose
  22. math

    A science workbook is 0.75 inches thick. How many workbooks will fit on a 2-foot shelf? what is the equation? estimation?

    asked by robert
  23. math logic

    There were 1320 pumpkins in a pumpkin patch, but it was difficult for farmer Joe to find the perfect pumpkin. • Every third pumpkin was too small. • Every fourth pumpkin was too green. • Every fifth pumpkin had a broken stem. • Every sixth pumpkin

    asked by gina
  24. math logic

    There were 1320 pumpkins in a pumpkin patch, but it was difficult for farmer Joe to find the perfect pumpkin. • Every third pumpkin was too small. • Every fourth pumpkin was too green. • Every fifth pumpkin had a broken stem. • Every sixth pumpkin

    asked by gina
  25. MICRO ECON

    IS this true or False In a competitive pure exchange economy with two consumers and two goods, if one consumer has perfect complement preferences and the other has perfect substitutes then the contract curve is along the outer edge of the Edgeworth Box.

    asked by gradstudent
  26. 6th gr GRAMMAR

    why is : she is one of the few quaterbacks who (is/are) ready for prime time the answer is "are" why is that correct? shouldnt it be is because she is one=singular?

    asked by Cory
  27. Math

    Early in his career, Andrew Ellicott Douglass (1867-1962) noticed a connection between climate and the growth of plants. Studying this connection, Douglass was able to develop the science of dendochronology, a method for dating events and climate

    asked by Linnie
  28. business

    Does anyone's organization use "food" as a motivator?

    asked by meshelle
  29. geoagrophy

    im confused on week 3 pg geo on number 6 i need help ?

    asked by cristy
  30. psy

    Ms. Sue I need some data to help me discussed this question. How have you used the scientific process (unsystematic observation, building theories, and evaluating propositions) in your life to better understand your personality? Provide an example. I read

    asked by rose (Ms. sue)
  31. busines

    Who was the leader in the Bidder's edge vs Ebay case

    asked by Laneice
  32. sci

    Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

    asked by Anonymous
  33. 7th grade algebra

    -7/8 + 5 1/2 x 11/15 In order of operations do I do 5 1/2 x 11/15 and then add the -7/8?

    asked by Canyon
  34. math

    A science workbook is 0.75 inches thick. How many workbooks will fit on a 2-foot shelf? what is the equation? estimation?

    asked by robert
  35. ESSAY WRITING

    I have to do an essay analysis and it's asking me for the topic sentence, supporting points, and a paragraph response. I have a few questions. topic sentence, how do you know which is the correct one? supporting points, is it in your opinion? and how would

    asked by Angie
  36. english composition

    i want to know how corruption is a curse

    asked by noshin
  37. english essay

    i want to know how "corruption is a curse"

    asked by noshin
  38. Science

    I need some information about the big bang theory. What website would be the best for information?

    asked by Logan
  39. NOT SURE

    can i have some facts on Barack Obama and John MaCain please

    asked by jane
  40. Science

    Thank your for the information about The Big Bang Theory. Now can I have some information about Albert Einstein?

    asked by Logan
  41. computers

    My computer is not starting. When i remove connection & reconnect then only it will work. one beep is also i can listen. today i got one error msg before pc start fireware is detected n your pc memory is decreased. please suggest me solution.

    asked by Raksha
  42. Microeconomics

    Monopolistic Competition The administrtive burden of regulating price in monopolistically competive market: A. small due to economies do scale B. large because price is usually below marginal cost C. large because of the large number of firms that produce

    asked by G
  43. Reiny to Gina (logic)

    I saw your reply re my late night solution to your pumpkin question http://www.jiskha.com/display.cgi?id=1224212047 I did indeed make two typing errors, which even though they do not change the actual answer, nevertheless would have caused confusion. I

    asked by Reiny
  44. PSAT format

    For the reading section is the format part 1 vocab 2 short passages 1 long part3 vocab 2 short passages 2 short or is it the other way around

    asked by Lina
  45. Chemistry

    I'm looking at a protein in a 3D visualization program (PyMol). I have the full amino acid sequence list. How do I determine *where* there are hydrophobic interactions that are stabilizing the tertiary structure? I know what hydrophobic interactions are in

    asked by chemstudent
  46. english

    The square root of the lava lamp is champagne, and the ace of spades is tattooed on the wrist of the man who invented the poker chip. Assuming poker chips are round, what will this man's last words be?

    asked by eric
  47. Albegra word problem

    PLEASE HELP!!!!! The length of a rectangle is fixed at 19cm what widths will make the perimeter greater than 70cm

    asked by PJ
  48. Math

    The length of a rectangle is fixed at 11 cm. What widths will make the perimeter greater than 76 cm?

    asked by Jessica
  49. math

    A science workbook is 0.75 inches thick. How many workbooks will fit on a 2-foot shelf? what is the equation? estimation?

    asked by robert
  50. English

    i have to do an essay analysis and it's asking me for the topic sentence, style of essay, supporting points, and a paragraph response. I have a few questions. 1. how do you find the topic sentence? 2. what's style of essay, and how do you find that? 3.

    asked by Angie
  51. Natural Science

    Discuss :The impact of technology in terms of cultural consumption. Answer: Technology is re-engaging people, bringing closer to each other more than ever. As the technology advances, people are interacting with one another from all over the world or

    asked by sheer12
  52. social studies

    Who was an ancient Roman writer and historian who wrote about the great fire in Rome?

    asked by Clare
  53. Physics

    YOu are creating a transverse wave in a rope by shaking your hand from side to side. Without changing the distance that your hand moves, you begin to shake it slower and slower. What happens to the frequency? it decreases?? 2. For incomplete cancellation

    asked by mark
  54. 4th grade

    It is a circle graph question. The city book club raised $560 to buy books for the school library. The greatest amount of money come from a walk-a-thon. A crafts fair and a bake sale raised equal amount of money. The amount received from club dues was

    asked by yennar
  55. philosophy

    I am having big trouble! I was given a topic that I hav eto present, and reading it makes no sense to me. Postmodernism theory-I have to explain the M E A L: Metaphysics-what is real, Episttemology-what is true, Axiology-what is the value, and logic, what

    asked by Lisa
  56. Albegra

    I have work this problem out F< 1544.5 F= 9/5 C + 32 9/5 C + 32 < 1544.5 9/5 c + 32 -32 < 1544.5 9/5 C < 1544.5 5/9 * 9/5 C < 5/9 (1544.5) Now my question to you is how do I rounded 1544.5 ?

    asked by PJ
  57. history

    who is grahamini

    asked by nirav
  58. SOCIAL STUDIES

    THE LEADER OF A TOWN OR A CITY IS THE : A)LEADER B)PRESIDENT C)MAYOR D)GOVERNOR

    asked by Anonymous
  59. 8th grade

    what is x-y=6

    asked by german
  60. Need help please math

    Soybean meal is 18% protein and cornmeal is 9% cornmeal, how much of each mixed together will you use to make a 360lb mixture that is 17% protein.

    asked by philleasha
  61. Management

    Imagine that you are Bill Gates, the founder of Microsoft, and that you are constantly engaged in environmental scanning as part of the planning process. Explain briefly how you would go about doing it. Can you keep track of all aspects of the environment?

    asked by Johnda
  62. science

    How did Gregory Mendel novel approach contribute to his success in describing how traits are inherited?

    asked by jessica
  63. physics

    A continuous stream of water is flowing out of a faucet and falling into a sink below. Explain why this stream of water is narrower at the bottom (near the sink) than at the top (near the faucet).

    asked by H
  64. MATH

    the word problem is stated exactly as this - the shaded area of the chart represents the number of Acme employees who bring their children to day-care centers before work.if there are 465 employees at Acme, how many do not bring their children to day-care

    asked by Rose
  65. childhood ed.

    A classroom activity that requires children to find their name cards at Circle Time or on the Daily Duties chart affords an opportunity for: A. the teacher to observe the child's active participation in classroom responsibilities. B. noting the child's

    asked by Alley
  66. Integers-Math

    if -5

    asked by Renell
  67. Night Vision

    what are some dangers of using night vision?

    asked by lily
  68. history

    What kind of reforms were inacted in Germany and Britian?

    asked by Anonymous
  69. Philosophy

    Create a political campaign ad (a poster, a flier, etc.) for two political parties: one party that supports traditional moral and political philosophies and another party that supports modern moral and political philosophies (modern vs. traditional

    asked by Scott
  70. maths calculus

    How to integrate (cos2x)^2?

    asked by Surf
  71. Treasury securities and Inflation (URGENT)

    How does inflation figure in when it comes to treasury securities?

    asked by Karen
  72. early education

    When a teacher modifies a word game(e.g.Simon Says) to incorporate a higher level of speech, she is: a. modeling use of decontextualized language. b. employng scripts to build and expand the child's cognitive ability. I picked b.

    asked by Alley
  73. Psychology

    The idea that successful businesses (the “fit”) deserve to gain all they can, without contributing to the common good, and that the disadvantaged are where they are basically because of their own shortcomings (weakness) was known in the early 20th

    asked by Damien