Questions Asked on
October 5, 2008

  1. AP Chem

    Combustion of 6.38 mg of ethylene glycol gives 9.06 mg CO2 and 5.58 mg H20. The compound contains only C, H, and O. What are the mass percentages of the elements in ethylene glycol?

    asked by Anna
  2. Chemistry

    Choose the true statements regarding the charge-minimized Lewis structure(s) of the BrO2- ion. (selet all that apply) a. There is only one charge-minimized structure for this ion. b. There are two charge-minimized resonance structures for this ion. c. The

    asked by Lindsay
  3. math

    the price p and the quantity x sold of a certain product obey the demand equation p=(-1/3)x + 100 o is < or equal to x < or equal to 300 A) express revenue R as a function of x b) what quantity x maximizes revenue.

    asked by jan
  4. Chemistry

    I need help with these two problems: At a given pressure and temperature, it takes 4.55 min for a 1.5 L sample of He to effuse through a membrane. How long does it take for 1.5 L of H2 to effuse under the same conditions? A gas-filled weather balloon with

    asked by Amy
  5. Project Management

    Case Study: Calcutta's Metro In 1996, Calcutta’s long-waited metro finally opened to a collective sigh of relief from the long-suffering population of this large Indian city. Critics had long derided the project a one of the “slowest-moving” public

    asked by animal
  6. Project Management

    Case Study: The Dulhasti Power Plan Begun in 1985, the Dulhasti Power project, set in the northern Indian provinces of Jammu and Kashmir, represents an example of a disaster in project cost estimation and delivery. As initially conceived, the project’s

    asked by animal
  7. AP Chem

    Calculate the number of atoms in 32.0 g Br2. I keep getting 1.20 * 10^23 atoms Br2 but my book says i'm wrong.

    asked by Anna
  8. 11th grade physics

    my physics teacher asked the class to find a cool physics topic and write a summary and a reflection on it 1page.... any ideas im really stuck

    asked by JESSICA!!!!!!!!!!!!!!!!!
  9. Grade 11 Physics

    Rearrange the equation : d=v2t - 1/2at(squared) to solve for a

    asked by Student
  10. math

    Name 2 ways decimals are used in everyday life

    asked by BAylee
  11. trig

    a ship has maintained a bearing of 47 degrees. ( a bearing is the angle measured clockwise from due north) a) how far has the ship sailed if it is 200 miles north of its original position? b) how far east of its original position is the ship? c) if the

    asked by jerson
  12. math

    The greater of two numbers is 1 more than twice the smaller. Three times the greater exceeds 5 times the smaller by 10. Find the numbers. The second of three numbers is 1 less than the first. The third number is 5 less than the second. If the first number

    asked by delaney
  13. chemistry help

    A 265 g aluminum engine part at an initial temperature of 2.00°C absorbs 84.5 kJ of heat. What is the final temperature of the part (c of Al = 0.900 J/g·K)?

    asked by james
  14. thermochem

    An unknown volume of water at 18.2°C is added to 27.0 mL of water at 36.7°C. If the final temperature is 23.5°C, what was the unknown volume? (Assume that no heat is lost to the surroundings; d of water is 1.00 g/mL.)

    asked by james
  15. AP BIo

    IF a core is cut from a carrot and the hole is filled with corn syrup and sealed by a glass tube and then suspended in pure water, what would happen to the cells adjoing the hole, to the epidermal cells? Also, what will happen to the level of the liquid in

    asked by Kelly
  16. health

    the three things that describe and difine what enviorment is ?

    asked by emmanuel
  17. Science

    How is density expressed

    asked by Pat
  18. french

    I have to write a paragraph in french about who i am where i live and what pets i have,my name is Harry White I am 12 years old I live in Buckingham and have 2 dogs 5 cats how on earth do I write that in french

    asked by Harry
  19. AP Chem!

    Hey, I have a test tomorrow in ap chemistry on gases. My teacher said that the test would be many open ended questions that are sort of like "explain what happens when a balloon is lowered into 77degrees C of liquid nitrogen and why" Can you guys give me

    asked by Adrian
  20. math

    im in grade 7 and ihave amath question wallet a contains 36 coins of quarters and loonies in the ratio 2:7 Wallet b contains 36 coins of quarters and loonies in the ratio 1:3 Wallet c contains 36 coins of quarters and loonies in the ratio 1:5 which walllet

    asked by peter
  21. chemistry-thermochemistry

    A student mixes 85.7 g of water at 68.0°C with 50.7 g of water at 24.5°C in an insulated flask. What is the final temperature of the combined water

    asked by james
  22. US History-- URGENT

    2. Which original political party appeared to have the broader or more democratic base of support? I said the Democratic-Republicans had a broader base of support bc they wanted protection of their basic rights for the common people. There were more common

    asked by Mike
  23. 10th Grade English

    what is the central human tradgedy of the Iliad? what is its most important theme?

    asked by Joselyn
  24. algebra

    factor completely x^2+6xy+8y^2

    asked by mike
  25. algebra

    The base of a triangle is 4cm greater than the height the area is 48cm^2 find the height and the length of the base

    asked by Anonymous
  26. 9th grade

    what is nickel's state of matter at room temperature

    asked by tishelle
  27. math

    Write the ratio of 4 1/3 to 6 in simplest form.

    asked by selma
  28. Chemistry

    The color change of the bromothymol blue with water is caused by carbon dioxide from your breath. How can you test this hypothesis? Need answer immidiately.

    asked by R
  29. History- the civil war

    I am anti slavery what are the differences in the 2 sides that fought in the civil war? I mean, was one side anti slavery and the other not? Because the question asks "if you were to fight in the civil war, for for which side would you fight and why"?

    asked by Jason pol
  30. algebra

    5x=7+4y 20x-16y=28 how many solutions are there for the system of equations? Infinitely many solutions No solution. two solutions or three solutions?

    asked by dj
  31. math 116

    a water line is given by the equation y = - 2/3x - 12 . Suppose you want to put a pink flamingo lawn ornament in your backyard, but you want to avoid placing it directly over the water line, in case you need to excavate the line for repairs in the future.

    asked by Carmen
  32. algebra 2

    Pete and Kathy are standing at home on a softball field. Pete starts walking up the third base line at the rate of 6 feet per second. At the same time, Kathy starts jogging up the first base line at the rate of 10 feet per second. In how many seconds will

    asked by mike
  33. college physics

    a golfer rides in a golf cart at an average speed of 3.10 meters/sec for 28.0 sec. she then gets out of the cart and starts walking at an average speed of 1.30 m/s. for how long in seconds must she walk if her average speed for the entire trip, riding and

    asked by ksunhsine
  34. american history

    ok im doing a crossword puzzle on the constitution info...i'm doing 11th grade history and i just need 2 answers left... the 1sr is , powers of both the state and federal governments (but the third letter is s) ..2nd is and anti federalist (during the

    asked by gaby
  35. anatomy

    can any tell me of a website that will give me info on abnormal Urinalysis test, describe and name possible results and indicate the disorders that these abnormal results may suggest ?

    asked by unknown
  36. PSAT HS

    How do i start studying for the PSATs which are in 1 week and a half?

    asked by Temisan
  37. 9th grade

    How do you calculate the velocity of a quarter dropped from a tower after 10 seconds?

    asked by Layla
  38. World History

    How did the Magna Carta and the Bill of rights lead to a change in goverment.

    asked by Rachel
  39. sociol studies

    plse help me 12 the ____ islands were added to the united states in 1898 but never became a state. 14 queen liliuokalani attempted to prevent these islands from becoming part of the united states. 5. a central american country dominated by the u.s 10. He

    asked by Amy
  40. Physics

    Two men lifted a total mass of 653.2 kg approximately 4 in. off the ground a total of 24 times. Estimate the total mechanical work done by the two men in lifting the boat 24 times, assuming they applied the same force to the boat during each lift. (Neglect

    asked by Sandhya
  41. science

    what is silicon?and what is it used for

    asked by Bre m.
  42. math

    I don't know if this answer is right so i am trying to check it here maybe if any could help The function f(x) = |x| - x 4 has a graph that is symmetric with respect to the y axis right?

    asked by Natasha P.
  43. Math- Rational Functions

    1. Some rational functions have asymptotes, others have holes, and some have both. Explain how you can identify, without graphing, which graphical features a rational function will have. Can someone explain this thoroughly ? I don't understand. thanks in

    asked by Mae
  44. 7th grade science

    What is a simplified reprsentation of reality? It is either a model,table,variable,or an inquiry. Does anyone know the answer?

    asked by Cailey
  45. college physics

    an automobile starts from rest and accelerates to a final velocity in 2 stages along a straight road. each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.0m/s^2. the magnitude of the car's velocity at the

    asked by ksunhsine
  46. college Math Word Problem

    The mass of Uranus is about 8.7x10^22 metric tons. The mass of the sun is about 1.998x10^27 metric tons. About how many times the mass of Uranus is the mass of the sun? Give your answer in scientific notation.

    asked by Matt
  47. Project Selection

    If cost and rate of return were the only determining factors in the selection of a project, which one would you agree is the best selection? Scoring model: project 1: Score = 22 project 2: Score = 28 NPV analysis: project 1: $60,995 project 2: $25,695

    asked by animal
  48. math

    Write a proportion that is equivalent to the statement: If 3 gallons of gasoline cost $5.37, then 8 gallons will cost $14.32.

    asked by selma
  49. Science

    how do you calculate if a block of wood dropped form a tall building has attained a velocity of of 78.4 m/s, how long has it been falling?

    asked by Layla
  50. Project Management

    Evaluating the Two Methods of Risk Analysis Explain how the results in both quantitative and qualitative analysis are used in both recommending moving forward with a project and planning a project. • Analyze and explain the difference between qualitative

    asked by animal
  51. latin

    is there a site that i can practice simple sentence translations, where it will give the answer if i am wrong?

    asked by laurie
  52. math 116

    I thought I knew this stuff but now I'm starting to wonder. I've tried several times but I haven't been able to figure this out. there is also a diagram showing a water line where the y intercept is crossing over (0,-12). the question is Q: what is the

    asked by Carmen
  53. math 116

    1) you are planning to spend no less than $6,000 and no more than $10,000 on your landscaping project. Q1: write an inequality that demonstrates how much money you will be willing to spend on the project. A1: 6,000 greater than > and equal = to 10,000 Q2:

    asked by Carmen
  54. Math Problem

    The slope of the "secant line" between the points (2, 5) and (x, x 2 + 1) in simplified form is, what?

    asked by Casey
  55. thermochemistry

    Calculate the amount of heat liberated (in kJ) from 374 g of mercury when it cools from 83.7°C to 19.1°C.

    asked by james
  56. calculus

    Let C be the curve which is the intersection of the half-cone S1 = {(x,y,z)|z=sqrt(x^2 + y^2} and the paraboloid S2 = {(x,y,z)|2z=3-x^2-y^2}. Find C. a)Make a 3-D sketch to show S1, S2, and C b) Show that at each point on C the normals to these two

    asked by mark
  57. history

    describe the connection between student unrest and the vietnam war

    asked by Anonymous
  58. college - phonetics

    how do you transcribe the "th" sound in "SLP language"?

    asked by cutie
  59. Environmental Science

    We are being asked to identify reasons that an article is or is not science using the list of 8 characteristics of science. What are the 8 characteristics of science?

    asked by Alexa
  60. american history

    i'm in a highschool american class and were learning about the constitution time.. who was an antifederalist of this time and what is the name of powers kept by both the state and federal governments

    asked by gaby
  61. history

    what items would you carry on a trip in the 15th century?

    asked by rob
  62. English

    In the concluding paragraph of an essay, is the thesis supposed to be restated at the beginning of the paragraph or at the end?

    asked by Anonymous
  63. microecomomics

    When deriving an individuals demand curve how do you find the optimal bundle if you are only given: price of 2 goods and income. i.e- price of wine: $35 price of beer: $12 Income= $419

    asked by please help!
  64. language arts

    please explain how to make the word fireman possessive

    asked by dawn
  65. Honors Biology

    The inability of defensin to function in high-salt environments is at least partly responsible for the pathology of this disease. Imagine that you are the director of a biotech company that specializes in manufacturing human proteins by producing them in

    asked by Emily
  66. Accounting - Adjusting Entries

    $750 of insurance expense needs to be accrued. It was originally recorded as prepaid insurance. Do I just debit prepaid insurance and credit insurnace expense for $750?? My other problem is adjustment was made to record interest expense on bonds payable

    asked by Liz
  67. 11th grade physics

    is there physics in football

    asked by JESSICA!!!!!!!!!!!!!!!!!
  68. sports

    what strategies are used to encourage football participation?? please help

    asked by elizabeth
  69. Ap chemistry

    I'm taking ap chemistry also! I was just wondering about how much space they give you on an ap chemistry test the Multiple choice section, is it enough space for work? Do they give you scrap?

    asked by Jaqui
  70. algebra

    Can you help me figure out this? 7+3x=5x+13

    asked by Katrina
  71. communication

    How will you apply the knowledge you have gained about effective business communication in your current or future job and college courses?

    asked by LILSISTER
  72. pysical science

    Write a letter to persuade a friend that a change in temperature does not necessarily mean that a chemical change has occurred .

    asked by nina
  73. paging Writeacher

    I actually would like to voice a concern (or rather complaint) regarding your contribution to the english-chariots of fire movie discussion thread that was originally started by Martha. I would like to continue that conversation. with you. Please refer to

    asked by Brandon
  74. 11th grade physics

    im not procrastinating i really don't understand it. im not asking for the answers im just asking for a little more help??

    asked by JESSICA!!!!!!!!!!!!!!!!!
  75. World History

    How are the Assyrian and Phoenician empires alike?

    asked by Martin
  76. us history

    What changes were brought upon by the Progressive Era?

    asked by Jose
  77. History

    What are some solutions to the issue of slavery? all I can think of is protesting against it. is that good? what other solutions can help the issue?

    asked by Jackson
  78. Algebra II

    for the line, y=-3x-2; list 5 possible solutions (ordered pairs)

    asked by Alexis
  79. 10th grade,english

    Group the following words into categories:allegory,fable,slogan,tactics,Spontaneous Demonstrations,rebellion,second class,first class,comrade,fairy story,prose,poem,indoctrination,propaganda,commandment,cryptic,morose,loyal,frugal,sunday

    asked by Lily
  80. Science - Chromatography

    I performed a TLC of plant pigments in my lab class with a solvent of petroleum ether/ acetone (7:3) and used a silica gel plate. It is expected that the most polar pigments (chlorophyll) will be located near the bottom and the carotenoids near top. In my

    asked by Veronica
  81. AP Chemistry

    I think this is a units issue, i keep getting the wrong answer. the formula should be rate1/rate2= (molar mas 2/ molar mass1)^1/2 but every time i do it, i get it wrong, and when i do rate1/rate2= (molar mas 1/ molar mass2)^1/2, i get the right answer. It

    asked by Emily
  82. Chem/Physics

    Are there two ways of calculating the average kinetic energy of a molecule? Ik that 1/2mv^2 works but for this problem, i don't know the mass or the velocity....

    asked by Rachel
  83. science

    *what are Required government, societal, and global support for air pollution. *Benefits and challenges of air pollution do you know any sites I can find these answers at?

    asked by scooby9132002
  84. Law

    Which activities are governed by the Canadian Charter of Rights and Freedoms and which are not? Describe the distinction.

    asked by Tracy
  85. anatomy

    what kind of cells would form a scar on the head after cancer had been removed.

    asked by j
  86. math

    solve for the unknown 2/3 over 10=1.8 over x

    asked by selma
  87. MATH

    The slope of the "secant line" between the points (2, 5) and (x, x 2 + 1) in simplified form is, what?

    asked by Casey
  88. PRE CALC

    The x-intercept of the graph of f(x) = sqrt(x - 1) - 2 is (5, 0)

    asked by Karren
  89. language

    does anyone know of an expression with the word thigh in it

    asked by martha
  90. Science

    what if you don't know the height of the tower to calculate the avg. velocity?

    asked by Layla
  91. math

    solve for unknown 8 over 52= x over 39

    asked by selma
  92. music

    How do you do ledger lines they are super confusing

    asked by sela
  93. MATH

    what is the domain of f(g(x)) If f(x) = 3x + 2 and g(x) = x/(x- 2) How do I do this problem?

    asked by Karren
  94. Chemistry/physics

    Are there two ways of calculating the average kinetic energy of a molecule? Ik that 1/2mv^2 works but for this problem, i don't know the mass or the velocity....

    asked by Rachel
  95. science

    I need to find the term for this statement: process by which substances pass in and out of cells

    asked by Yasi
  96. sociol studies

    im srry i know i already asked about some things but i cant figure out thes two 8. minor c. keith provided financial service to this country in return for long term leases 13. this said that cuba must allow the u.s to establish naval bases there is the

    asked by Amy
  97. math 116

    suppose you want to add a sprinkler system, and the location of one section of the sprinkler line can be described by the equation y = - 1/2x - 4 complete the following table: x y (x,y) ? -1 ? -2 ? ? ? -4 ? 2 ? ? 8 ? ? my answers: x y (x,y) -1.5 -1

    asked by Carmen
  98. Social Studies

    Which statement is true about Africa? (A) It has 2 large deserts. (B) Most most people live in southwest. (C) Most of the worlds people live their. (D) It is about 3 million square miles in size.

    asked by Emily
  99. SATs

    I am taking the SATs soon and i feel like i have a lot of reasources, but i don't have enough time to study all of it, how do i condense? What is the most important i think my best section would be math, then writing, then reading.. (i don't think sending

    asked by Lynn
  100. Healthcare

    Need some help with some consequences of seperating mental health from physical healthcare. Also some other services(social and health) might be needed by mental ill

    asked by Nikia walker
  101. science

    Can some one help me with the simpsons controls and variables worksheet please,

    asked by Anonymous
  102. 11th grade physics

    bob where r u !!!

    asked by JESSICA!!!!!!!!!!!!!!!!!
  103. Honors Biology

    The inability of defensin to function in high-salt environments is at least partly responsible for the pathology of this disease. Imagine that you are the director of a biotech company that specializes in manufacturing human proteins by producing them in

    asked by Emily
  104. algebra

    how do i figure this out step by step? 3x-7=5x+13

    asked by Mat
  105. Science

    I need help determining what impact the following has on force: The factor of 2 is added to force and the mass is cut by 1/3. Can anyone help me? Tahnks!

    asked by Donna
  106. Math

    rewrite y=x^2+2x-5 into the form y=a(x-h)^2+k, and state the maximum or minimum value of y and the value of x when it occurs.

    asked by Hannah
  107. psychology

    What was the first experiment in which B.F. skinner tested the theory of operant conditioning? Details on the experiment? Any help would be appreciated. =)

    asked by alexa
  108. Current events

    Does anyone know pakistan's current position on russia/georgia, the environment,and the status of permanent refugees?

    asked by Kate
  109. Health

    I'd like to improve vision. What can we do to improve eye sight? Would you let me know how? website address as well.

    asked by John
  110. 1st grade

    make the shape.use your pattern-block template.

    asked by Anonymous
  111. Introduction to database design

    Given the following complicated business rules, create the appropriate Crow’s Foot ERD. (50 points) a. A store may place many orders. (Note the use of “may”) b. An order must be placed by a store. c. An order contains at least one order line. d. Each

    asked by Lamar
  112. Health

    Is it not good for health to eat soup all the time? Responses Health - Ms. Sue, Sunday, October 5, 2008 at 8:55pm Why not? Homemade soup with fresh meat and vegetables is healthy. Canned soups usually don't provide the nutrients and have far too much salt.

    asked by John
  113. science

    how can a solution be separated?

    asked by bailey
  114. algebra HEEEEEEEEEEEEEEEEELPPP!!!!!

    given two points one a line (8,1) and 10,8) find the x intercept and y intercept PLEASE HELP!

    asked by Mary
  115. algebra

    give the slope for the following lines: y+2=0 and x-3=0

    asked by James
  116. Economics

    How has today's economy affected the airline industries?

    asked by Becky
  117. Calculus-partial derivatives

    Let Z = f(u,v) where u=xy^3 + e^3 and v = (x^2)y. Obtain expressions for Zx and Zy in terms of fu and fv. I don't understand the "in terms of" part. How do I do this question? thank you

    asked by mark
  118. 6th grade

    Social Studies I'm looking for some information about the Minnesota Zoo. I want to know some history about it for my ABC Notebook. I have my pictures and letter colored but I just need the information next.

    asked by Hailey
  119. science- here is the worksheet someone help me

    Smithers thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to

    asked by Anonymous
  120. college

    Controlling Irrational Fears After 9/11* We present this selection as an example of a fairly well-reasoned argumentative essay. There is more here than arguments—there’s some window dressing and you’ll probably find some slanters here and there as

    asked by tweety18
  121. Science

    Cells make tissue and tissue makes what?

    asked by Samantha
  122. Misc./Project/Art

    Hello, I need to come up with a very creative way to express who I am to a certain group of people. Unfortunately, I'm not very good at art, so I would have to come up with a new way. Are there any ideas you might have? Thank you very much for your help.

    asked by Benjamin
  123. 7th grade

    when Muslims settled in Spain, they adopted the local religion and customs.

    asked by Anonymous
  124. math

    logarithms solve for x 5^(x-1) = 9

    asked by Anonymous
  125. Chemistry

    Why do gases behave in a less ideal manner when in LOW TEMP. AND HIGH PRESSURE?

    asked by Alison
  126. college

    Explain the logical distinction between valid and true and deduction and induction

    asked by Tim
  127. calc

    Let C be the curve which is the intersection of the half-cone S1 = {(x,y,z)|z=sqrt(x^2 + y^2} and the paraboloid S2 = {(x,y,z)|2z=3-x^2-y^2}. Find C. a)Make a 3-D sketch to show S1, S2, and C b) Show that at each point on C the normals to these two

    asked by mark
  128. math

    what does ^ mean?

    asked by frances
  129. English: what's the formal term for...?

    "Leave readers hanging" -- how can I say this phrase in formal?

    asked by Anonymous
  130. Science

    how do you calculate the average velocity of a quarter dropped from a tower after 10 seconds?

    asked by Layla
  131. MATH2

    Given f(x) = 4x 2 + 2x - 1, the simplified form of the difference quotient, [f(x+h) - f(x)]/h is, what?

    asked by Casey
  132. Group

    I just need small activities to bring to the class. Like matching questions and answers, small group discussion, what else?

    asked by Group
  133. Healthcare

    Can healthcare professionals who provide mental health care integrated with other systems of care?

    asked by Nikia walker
  134. history 5

    What was the predominant view concerning the relation between humans and the divine?

    asked by brit
  135. math 116

    suppose you want to add a sprinkler system, and the location of one section of the sprinkler line can be described by the equation y = - 1/2x - 4 complete the following table: x y ? -1 -2 ? ? -4 2 ? 8 ? my answers: x y 6 -1 -2 -3 12 -4 i still get 12 for x

    asked by Carmen
  136. Health

    Is it not good for health to eat soup all the time?

    asked by John
  137. college - physics

    was wondering if someone can help me out. Question: a jet has a length of 59.7 meters. The runway on which the plane lands intersects another runway. The width of the intersection is 25m. the plane decelerates through the intersection at a rate of 5.70

    asked by ksunhsine
  138. World History

    How are the political systems of the Persian Empire and Greece alike?

    asked by Martin
  139. governmnet

    does anyone know what the ap exam for gov and pol is like?

    asked by Kristin
  140. History

    Is there extra colthing in winter for a roman solider?

    asked by Kenni
  141. science.. plz help

    make a plan to reach sustainability on air pollution. can you help me please with soem ideas. thanks

    asked by scooby9132002