Questions Asked on
September 20, 2008

  1. chemistry

    In one experiment, the reaction of 1.00 g mercury and an excess of sulfur yielded 1.16 g of a sulfide of mercury as the sole product. In a second experiment, the same sulfide was produced in the reaction of 1.52g mercury and 1.02g sulfur. a) What mass of

    asked by lisa
  2. chem

    How many oxygen atoms are in 1.90g og quartz (SiO2)? ok so 1.90g SiO2(1mol/60.0843g SiO2)(2 O mols/1 mol SiO2) (6.022*10^23atoms/1mol) what am i doing wrongg???

    asked by Natash
  3. chem

    Imagine that you have a 7.00L gas tank and a 4.50L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 105atm , to what

    asked by hannah
  4. chemistry

    A certain metal hydroxide, M(OH)2 contains 32.8% oxygen by mass. What is the identity of the metal M? I don't understand what its asking for.

    asked by anonymous
  5. Home Economics

    List ten careers in Home Economics

    asked by Angel
  6. chemistry

    Determine the number of moles of a) N atoms in a sample of C7H5(NO2)3 that has the same number of O atoms as 12.6g C6H12O6 Someone posted a way to answer this question but i still don't understand

    asked by tomi
  7. chem

    If 17.0g of MgSO4*7H2O is thoroughly heated,what mass of anhydrous magnesium sulfate will remain ? I don't even know where to begin on this one

    asked by Natash
  8. 8th grade Social Studies

    Which colony was the first to promote religious tolerance?

    asked by Thao
  9. IAH 206 - Humanities

    My teacher wants me to tell how technology modifies our world, and what that means for certain themes about technology, but he wants us to focus on ways in which technology may have an impact on our "selves" in a broader and more indirect way, in ways that

    asked by James
  10. spellings

    i have these letters - e e i t x d s y a and i need to make a seven or eight word from them, if anyone can help it would be briliant thank you.

    asked by sarah
  11. chemistry

    A gaseous mixture of O2 and N2 contains 32.8% nitrogen by mass How do i figure out wat the mass is?

    asked by tomi
  12. music

    how do you change a theme (melody) in music to make variations?

    asked by yasmin
  13. Physics

    Two forces, F1 and F2 , act at a point. F1 has a magnitude of 8.80N and is directed at an angle of 64.0 degree above the negative x axis in the second quadrant. F2 has a magnitude of 7.00N and is directed at an angle of 52.8 degree below the negative x

    asked by Poole
  14. chem

    The American Dental Association recommends that an adult female should consume 3.0mg of flouride per day to prevent tooth decay. If the flouride is consumed as sodium flouride (45.24% F)what amount of sodium flouride contains the recommended amount of

    asked by natash
  15. physical

    Q: a freely falling object requires 1.50s to travel the last 30.0m before it hits the ground . From what height above the ground did it fall ?? Pleazzzz help ....

    asked by MSM
  16. english (revised)

    A) 1. The new principal of the school consecrates her energies to improving math and science education. 2. The great Shinto Shrine at Ise is consecrated to Amaterasu, a sun goddess. 3. Rather than trust a bank, she consecrates her life savings under the

    asked by kayla
  17. yr 8 - spanish

    una mocha ,un estuche, un cuaderno ,un libro ,unos boligrafos ,unos lapices, un sacapuntas ,un diccionario ,una goma, una regla, una agenda, una carpeta. no tengo , tengo thanks have just started spanish at school and i am a bit stuck with my homework

    asked by dean
  18. government

    the legislative branch can check the power of both the executive and judical branches by: A)passing writs of assistance for arrest of criminals B)declare executive and judical actions unconstitutional , C)giving itself a pay increase D) removal of judges

    asked by Anonymous,
  19. science(chem) Dr.Bob Question from before

    I'm doing an experiment and I'm supposed to have neutral basic and acid samples of solution. I just wanted to make sure that I knew which was which. (If I'm incorrect, please correct me) Acid: 0.7ml 10% H2SO4 + 0.7ml 10% Na2WO4(sodium tungstate) Basic:

    asked by ~christina~
  20. geography

    How can archaeologists continue to study ancient remains without infringing on the rights of Native Americans?

    asked by hillary
  21. SAT Practice Essay

    The media not only transmit information and culture, they also decide what information is important. In that way, they help to shape culture and values. Adapted from Alison Bernstein Assignment: Do newspapers, magazines, television, radio, movies, the

    asked by Sahil
  22. science

    what makes a river valley fertile

    asked by myzeah
  23. government

    the connecticut compromise called for a legislature made up of: two houses,where in one states were represented by population and the other wiyh equal state representation, one house based on population, two houses, each with members appoited by the

    asked by Anonymous,
  24. Calculus

    the path of a particle in the xy-plane is vector r = (cos2t, sint) for t for all [-pi/2, pi] where t represents time. Sketch the path. Is it a smooth curve? How do i sketch the path? do i just plug in random points between [-pi/2, pi]? how would i connect

    asked by mark
  25. Economics: Demand and Supply

    Suppose the market for ice cream is deregulated. That is, ice cream are free to adjust based on the forces of demand and supply. If a shortage exists in the ice cream market, then the current price must be _______ than the equilibrium price, and you would

    asked by Anonymous
  26. Physics

    Two forces, F1 and F2 , act at a point. F1 has a magnitude of 8.80N and is directed at an angle of 64.0 degree above the negative x axis in the second quadrant. F2 has a magnitude of 7.00N and is directed at an angle of 52.8 degree below the negative x

    asked by Poole
  27. science(chem)

    I was wondering how does one make a saturated chemical solution? I'm supposed to make one, is there a way I can determine the ammount solute needed for a certain amount of solvent? If not, how do I make a saturated solution? Thank you

    asked by ~christina~
  28. Economics (Cournot Equilibrium)

    If market demand is P = 100 - Q and MC is 40, what is the Cournot Equilibrium for N firms?

    asked by Bob
  29. Spanish repost subjunctive

    1)sera(ser) 2)ido(ir) 3)ira(ir) 4)podra(poder) 5)podra(poder) 6)habre(haber) 7)sera(ser) 8)resolveremos(resolver)

    asked by Anonymous
  30. English (vocabulary)

    How can you use the word 'malice' in a sentence?

    asked by Ashley
  31. chem

    Assuming the volumes are additive, what is the [Cl-]solution obtained by mixing 210mL of 0.600M KCl and 630ml of 0.385M MgCl2 ? Responses chemistry - bobpursley, Friday, September 19, 2008 at 4:20pm You have to assume each chloride is soluble. How many Cl

    asked by jay
  32. 8th grade Social Studies

    How might the colony of Georgia have been different if Oglethorpe's plan had succeeded?

    asked by Thao
  33. calculus

    the path of a particle in the xy-plane is vector r = (cos2t, sint) for t for all [-pi/2, pi] where t represents time. Sketch the path. Is it a smooth curve? How do i sketch the path? do i just plug in random points between [-pi/2, pi]? how would i connect

    asked by mark
  34. college

    show me examples of nonprejudical rhectorial device

    asked by diane
  35. american government/ economics

    A constituion: is a unitary form of government., sets out the principles and structure of a government., is a part of federal system of government ., is devolped only for democratic governments. i think its b.if not correct please, thank you

    asked by Anonymous,
  36. Spanish

    I need help. I think I figured the first one out. There are only 8 answers. Use the present subjunctive or the future indicative for of the verbs in parentheses. (the first verb is ser and I used era) Hace tres dias octavio y miguel estan en costa rica.

    asked by Anonymous
  37. business economics

    defines communism and capitalism

    asked by Siti Norhasimah
  38. maths

    what is the hundredth number and the tenth number? 46.135 is the 1 the tenth and is the 3 the hundredth

    asked by alexa
  39. Physics

    A scout troop is practicing its orientation skills with a map and compass. First they walk east for 1.2km. Next, they walk 45degrees west of north for 2.7km. In what direction must they walk to go directly back to their starting point? How far will they

    asked by Jacqueline
  40. geog

    sikh temples, muslim mosques thanks

    asked by mikey
  41. government

    powers shared by both the national government and the states are called A)reserved,B)expressed C)concurrent D)inherent, powers

    asked by Anonymous,
  42. calculus

    lim sqrt [(2+3x)/(1-5x)] x--->infinity I got no idea with how to do this one. Can anyone please teach me how to do it?????THANKS A LOT!!!

    asked by komi
  43. science(chem)

    I'm doing an experiment and I'm supposed to have neutral basic and acid samples of solution. I just wanted to make sure that I knew which was which. (If I'm incorrect, please correct me) Acid: 0.7ml 10% H2SO4 + 0.7ml 10% Na2WO4(sodium tungstate) Basic:

    asked by ~christina~
  44. College Physics

    One last physics problem left: Peggy drives from City A to City B in 50 minutes. City A is 75.1km from City O in a direction of 25degrees west of south. City B is 23.9km from City O in a direction of 20degrees south of west. Using City O as your origin,

    asked by Jacqueline
  45. history

    When were the colonial ages in North America?

    asked by Anonymous
  46. HHS 265

    Read appendix B and answer appendix c. I have attachments.

    asked by Sherry
  47. Us History

    What were the provisions of the Treaty of Paris in 1783, and how did the TRaty affect relations among the United States, France, and Spain?

    asked by Vania
  48. business communications

    I need some assistance with ideas on 5 preliminary quesitons to ask when starting a new business

    asked by ahunt
  49. Education 7b

    What qualifies as an emotional disorder? Explain which emotional disorders are most common in children. How might these emotional disorders affect a child’s development and learning?

    asked by Melvenia
  50. Education 9

    Pursuing a profession in which you will be an integral part of a child’s development is a very important decision. Discuss what led you to make this decision and what you envision for the remainder of your academic career as well as the beginning of your

    asked by Melvenia
  51. 8th grade Social Studies

    Which colony was the first to promote religious tolerance

    asked by Thao
  52. Critical Thinking

    Read the article “Controlling Irrational Fears After 9/11” below and do the below 5 items for practice 1) Identify at least two arguments in the article. 2) Outline the premises and conclusions of each argument you find. Answer the following questions

    asked by CMB
  53. chem

    if hydrogen and helium were to mix, what would be the product(chemical formula)

    asked by mike
  54. american government

    a government is ruled by one person who? presidential, constitutional, unitary, dictatorship,i thinks its a or d im not sure

    asked by Anonymous,
  55. chemistry

    Determine the number of moles of N atoms in a sample of C7H5(NO2)3 that has the same number of O atoms as 12.6g C6H12O6

    asked by tomi
  56. government

    the bill of rights: guarantees the states the right to coin money, provides for the president veto right, guarantees certian rights for individuals such as a fair treatment before the law,guarantees the right of the people to elect federal judges .i think

    asked by Anonymous,
  57. physics

    we just did an practical on newton's second law and we just have to do a report on it.... basically there are two parts to it, first part is when the overall mass of the system remains constant and the second part is when the force remains constant. there

    asked by WT
  58. american government

    just to make sure my answers is A) national government the delegated powers belong to the:but the other choices are B)the states C) congress D)the president

    asked by Anonymous,
  59. geog- still

    sorry to be a pain but it still doesn`t answer the question . my homework is a wordsearch and i only have clues its to do with diversity in the uk. the only 2 i can`t find is sikh temples and muslim mosques i can`t find anything in the wordsearch that

    asked by michelle
  60. Writing

    What are Cinderella's stepsister's names?

    asked by Caitlin
  61. Spanish

    Hello, I need help with this question, how does the rivalry between Alonso and Rodrigo relate to the history of the two towns in Knight of Olmedo? I have loyalty to the king so far, but need to find more, thanks

    asked by Sheila
  62. Science

    Sorry again, but can you please tell me the website for the population/percentage of sonographers here in America please.

    asked by Mariz
  63. american government

    the government of u.s. is: federal, authoritian , unitary, parliamentary. i think its c or a

    asked by Anonymous,
  64. Us History

    What were the initial setbacks in the war during 1776, and what was the significance of the Battle of Trenton and Princeton in this advantages?

    asked by Vania
  65. 8th grade Social Studies

    Why were slaves in high demand in the southern colonies?

    asked by Thao
  66. science

    IS GAS THE MOST IMPORTANT STATE OF MATTER?

    asked by SSS
  67. Pre-Cal (again)

    If: f(x)= 3/x^2-1 g(x)= x+1 What is the domain of f, g, and f o g?

    asked by Crystal
  68. 12th grade

    In statistic: How to construct a duble steam display for the minutes it took the mailperson to deliver mail as listed: 80 68 56 64 69 70 64 70 62 73 69 82 62 58 63 65 67 54 71 61 67 75 70 66 62 73 59 58 78

    asked by russ
  69. calculus

    lim sqrt [(2+3x)/(1+5x)] x--->infinity I got no idea with how to do this one. Can anyone please teach me how to do it?????THANKS A LOT!!!

    asked by Kumiko
  70. american government

    in a democracy, supreme authority belongs to the: state, people, rulers , elite. i think its a. or d.

    asked by Anonymous,
  71. american government

    the electoral college: A) creates and enfores the rules for elections B)is the group who elects the president C) provides the training for each federal elected official ,D) is the last vestige of our old parliamentary government.

    asked by Anonymous,
  72. Economics/Business

    When buying a new house, is APR the same thing as annual interest rate?

    asked by Jackie
  73. geog

    we are doing diversity in the uk in geography we have a worsearch but no words only clues and the 2 clues i am stuck on are muslim mosques and sikh temples . thanks

    asked by nia
  74. cutural diversity

    identify the linguistic, political, social, economic, religious, and familial conventions and/or statuses of four hispanic groups living in the United States

    asked by lee
  75. math

    i know it sounds stupid but i don't feel good and i can't think so what is 4*5?

    asked by skate
  76. geography year 8

    my homework is diversity in the uk . i have a wordsearch and need to find people who have come to britain. 1/ gaelic dance - i think its jig or irish 2/ synagogues - jewish 3/ churches constructed after conquest in 1066 - Normans 4/ chop suey from a soho

    asked by michelle
  77. geog- still

    sorry to be a pain but it still doesn`t answer the question . my homework is a wordsearch and i only have clues its to do with diversity in the uk. the only 2 i can`t find is sikh temples and muslim mosques i can`t find anything in the wordsearch that

    asked by michelle
  78. Science

    The gel that the sonographers use to put on the patient's stomach, what exactly does it do? Is it important to put that on the patient's stomach or can you create images without it?

    asked by Mariz
  79. Science

    What type of education do you need in order to become an Diagnostic Medical Sonographer?

    asked by Mariz
  80. com220

    If someone asked, "wouldn't it be simpler just to write your paper than to create a full-sentence outline?" how would you answer this question? explain your response.

    asked by ano
  81. Science

    What is the starting salary, average annual salary, and top salary for a Diagnostic Medical Sonographer?

    asked by Mariz
  82. history

    When was Carolina settled as a colony?

    asked by Jillian
  83. english

    which one of the entences is wrong. A) 1. The new principal of the school consecrates her energies to improving math and science education. 2. The great Shinto Shrine at Ise is consecrated to Amaterasu, a sun goddess. 3. Rather than trust a bank, she

    asked by kayla
  84. Science

    What type of education is needed in order to become a Diagnostic Medical Sonographer?

    asked by Mariz
  85. science

    What are some current events on science?

    asked by jaimee
  86. statics

    You have a seesaw with 2 people on each end. the seesaw is on a pivot. label the forces in a free body diagram acting on the seesaw. Its online and I tried a force down on each end but then the pivot it keeps saying is wrong. I tried a force up from the

    asked by spencer
  87. ecology

    what is the relationship between feeding levels and the amount of energy available?

    asked by tashi
  88. 6th grade advanced math

    in paper pool, what is a basic table and what are two family tables?

    asked by blake
  89. Finance

    Why does the spot price and the futures price converge when approaching the delivery month of a futures contract?

    asked by Fala
  90. american government

    a federal government is one which:

    asked by Anonymous,
  91. american government/economics

    the connecticut compromise called for a legislature made up of:

    asked by Anonymous,
  92. government

    which of the following is an example of checks and balance? the u.s supreme court declares a law uconstitutional, power is shared between state and federal governments, congress passes a law, the senate devolps rules for its internal processes. i think its

    asked by Anonymous,
  93. Math

    (4b^4+2) - (7b^2-5) - (6b^4-2b^2) How do you exactly solve/simplify this? I get confused with the signs when it comes to adding/subtracting terms like these. Thanks much!

    asked by Nikki
  94. calculus

    A particle traces the path vector r = (t^3, t+3, t^2 -4t) where t represents time; it flies off on a tangent when t=1 and then moves in a straight line with constant speed. Find its position when t=4. Do I just plug the 4 into the t's in vector r?

    asked by mark
  95. college algebra

    h(x)=3xsquared+5x-3

    asked by shawn
  96. environmental studies

    Define the composition of solid waste

    asked by Thano
  97. Us History

    Why did the British decide to launch a campaign against the southern colonies in 1778?What advantages and disvantages did each side have in this region?

    asked by Cesar
  98. Child Development

    Discuss how as a professional, you may be able to assist children in refining their learning and metacognitive problem-solving strategies. At what stage in the maturation process do you believe it is most important to address a child’s learning and

    asked by Melvenia
  99. Math

    "There are 93 players signed up for a single elimination tennis tournament. How many matches will be played in all?" How would you go about solving a problem like this? I am confused.

    asked by Federico
  100. Child Development

    Rank the perspectives of language development in order of importance. Explain why you feel your first choice is the most important.

    asked by Melvenia
  101. Education

    Discuss three different ways a teacher can foster syntactic or semantic development in students. Provide a classroom example of each.

    asked by Melvenia
  102. Education 7bb

    A child’s perception of self varies by age and emotional development. As a professional, it is important that you recognize a child’s self-image as it relates to his or her development. How do strategies that promote a healthier self-image differ as a

    asked by Melvenia
  103. 8th grade Social Studies

    Why did more enslaved Africa live in South Carolina than did white settlers?

    asked by Thao