Questions Asked on
November 3, 2008

  1. physics

    When jumping straight down, you can be seriously injured if you land stiff-legged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 75 kg man just before contact with the ground has a speed of 4.6 m/s. (a) In

    asked by Anonymous
  2. physics

    A 2 gram bullet traveling at 1500 m/s [East] hits a 200 g block of wood at rest, and becomes embedded in it. If the block is suspended by long ropes, how high will it travel before it comes to rest?

    asked by Robert
  3. Physics

    An upright spring which is normally 3 m is compressed 2.3 m and a 2 kg block is placed on it. When it is 5 meters above the ground it is going 10 m/s. What is the spring constant of the spring? How high will the block travel?

    asked by Richard
  4. Math

    what is the domain of :the cubed root of (1-x)-1?

    asked by Nia
  5. French

    Can someone check this for me? I wrote it a while ago and it's due soon. There were certain vocab words that had to be in it and I couldn't find a way to stick some of them in there so can someone help me find ways to incorporate them? They are depuis,

    asked by Sarah
  6. science

    the velocity of a particle is given by v=[16t^2i+4t^3j +(5t+2)k]m/s, where t is in seconds. If the particle is at the origin when t=0, determine the magnitude of the particle's acceleration when t=2s. What is the x,y,z coordinate position of the particle

    asked by sarah
  7. science

    a go-cart moves along a circular track of radius 100ft such that its speed for a short period of time , 0 is less than t which is less than 4s, is v=60(1-e^t^2)ft/s. Determine the magnitude of its acceleration when t=2s? How do you figure this out while

    asked by sarah
  8. science

    a truck travels along the horizontal circular curve of radius r=60m with a constant speed v=20m/s. Determine the angular rate of rotation theta of the radial line r and the magnitude of the truck's acceleration.

    asked by sarah
  9. Pharmacy Math

    The dose of gentamicin sulfate is 1.7mg/kg. How many mls of an injectable solution containing 40mg/ml should be administered to a person weighing 220 pounds? Any help is appreciated.

    asked by David
  10. 6th grade

    how many fifths are in 1 3/5

    asked by dejonte
  11. calculus

    find the points on the curve y=2x^3+3x^2-12x+1 where tangent is horizontal.

    asked by BEN
  12. critical thinking

    its the article about Controlling irrational fears after 9/11 I need to know about the arguments and premises and conclusions

    asked by Susan
  13. Inertia

    A thin, uniform rod is bent into a square of side length a. If the total mass is M , find the moment of inertia about an axis through the center and perpendicular to the plane of the square. Use the parallel-axis theorem. Express your answer in terms of

    asked by Mary
  14. critical think

    Choose two topics from the Opposing Viewpoints Resource Center that interest you and locate a set of materials from the database for each topic. If you choose school violence as one of your topics, for example, you might find a magazine article that argues

    asked by Anonymous
  15. U.S. history

    What were the requirements and benifits from being a robber baron in the 1800's?

    asked by Pamela
  16. calculus

    Show that the curve given below has no tangent line with slope m1, where: y = 4 x^3 + 8 x - 6 m1 = 7

    asked by BEN
  17. Science

    The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.550. If a trial's absorbance is measured to be 0.350 and its initial concentration of SCN– was 0.0010 M, the

    asked by Bobby
  18. English

    1. Drivers sometimes can't see you. 1-2. Drivers can't sometimes see you. 1-3. Sometimes drivers can't see you. 1-4. Drivers can't see you sometimes. (Are all grammatical?) 2.You can get a shock. (What is the meaning of 'get' here?) 3. Mrs. Johnson gave

    asked by John
  19. college chemistry

    The enthalpy of combustion of benzoic acid,C6H5COOH, which is often used to calibrate calorimeters, is -3227kJ/mol. When 1.236g of benzoic acid was burned in a calorimeter, the tempurature increased by 2.345K. What is the specific heat of the calorimeter?

    asked by annemarie
  20. chem

    why would it be dangerous to heat a liquid in a distillation apparatus that had no vent or opening to the laboratory? - is this because the liquid will create vapor pressure and could cause a serious injury to a student?

    asked by Jason
  21. Math: Direct Variation

    what are the formulas that illustrates direct blinear variation ?? please help me !! i can't find any formula !! .. humpf .. :(

    asked by cherry
  22. algebra

    need help simplifying 2x+3y+2(x-y)-3x is there anyone that can help

    asked by karen - again
  23. chem

    A student carried out a simple distillastion on a compound known to boil at 124 C and reported an observed boiling point of 116-117 C. Gas chromatographic analysis of the product showed that the compound was pure, and a calibration of the thermometer

    asked by Jason
  24. math

    if a grocery store buys 30 gallons of milk at a cost of $1.58 per gallon, he anticipates a 15% spoilage rate , to achieve a 20% markup based on selling price what should it be I say $ 2.19 per gallon

    asked by unknown
  25. Physics

    display.cgi?id=1225682948 I'm still confused about how you got the (1/8)kx^2 and how to find the weight's maximum height at the top of its path through the air.

    asked by Bertrand
  26. Business

    Sue and Tom Wright are assistant professors at the local university. They each take home about $40,000 per year after taxes. Sue is 37 years of age, and Tom is 35. Their two children, Mike and Karen, are 13 and 11. Were either one to die, they estimate

    asked by Anonymous
  27. health records

    I am doing a paper on communication for health records and have done the email, fax, but what else is ther I can add to this. Pro’s and con to communication methods for health records

    asked by april
  28. Physics

    A bowling ball encounters a 0.76 m vertical rise on the way back to the ball rack, as the drawing illustrates. Ignore frictional losses and assume that the mass of the ball is distributed uniformly. If the translational speed of the ball is 5.40 m/s at the

    asked by Kyle
  29. chemistry

    if 24.25 mL of a standard M NaOH solution is required to neutralize 26.00 mL of H2SO4, what is the molarity of the acid solution?

    asked by james
  30. English

    I'm writing a paper in microsoft word, but I am having problem with the spacing of my paragraphs. I want the paper to be double space, but the paragraphs seems to be more than double space. Is there a way to change this?

    asked by Will
  31. healthcare

    I need some help with my final project. I have to develop a unique proposal that describes a new health care system. Consider the current U.S. health care system's strengths, weakness, and challenges. Also, o What is your vision for the new health care

    asked by Nikia Walker
  32. Health

    At allendale psychiatric hospital, the hospital census on january 4 is 110. according to the following data, whats the hospital census for january 5? admissions - 10 discharges - 2 a & d - 1 A. 99 B. 100 C. 108 D. 118 i am thinking that the answer is C but

    asked by Anonymous
  33. repost

    computer store sold total of 300 items last month the store sol six times as many hard drives as they did CD-Rom drives and half as many floppy drives, based on this info how many of each item were sold ?

    asked by unknown
  34. college chemistry

    The chemical reaction representing production of water gas is as follows: C(s)+H2O(l)=CO(g)+H2(g) calculate the enthalpy change in the production of 200L(at 500mmHg and 65degree celcius) of hydrogen by this reaction.

    asked by bennett
  35. rpost

    Laura is selfemployed and expects to make $96,000 her social security tax is 12.4% up to the wage base, medicare is 2.9% and her estimated federal tax rate is 25% what is Lauras expected tax payment for the fourth quarter. would it be $9,672.00

    asked by unknown
  36. Health

    What is the correct denominator for calculating the cesarean section rate? A. The total number of discharges B. the total number of deaths for the period C. total number of deliveries for the period D. total surgeries number? I was thinking that the answer

    asked by Anonymous
  37. Health

    Blood typing is based on ______ on the surface of the red blood cells. A. antigens B. protein C. antibodies D. a Rubella titer i am thinking B again im not 100% just wanted to see if i was correct. please help

    asked by Anonymous
  38. math

    sam and sylvia work at a book store , duing a sale sam sold 15% more books than sylvia If sam sold 69 books how many did sylvia sell is it 54 books

    asked by unknown
  39. math

    multiply the fraction 9/15 by 30/72 is this correct 27/108

    asked by unknown
  40. business

    specimen of informative messages issued by jet airways

    asked by tim
  41. math

    if a business carries fire insurance with two companies a $90,000 with allstate and $150,00 with travelers calculate allstates percent would it be 60%

    asked by unknown
  42. Inertia

    A thin, uniform rod is bent into a square of side length a. If the total mass is M , find the moment of inertia about an axis through the center and perpendicular to the plane of the square. Use the parallel-axis theorem. Express your answer in terms of

    asked by Mary
  43. Physical Science

    How much current flows in a 12-watt radio connected to a 120-Volt circuit?

    asked by Jordan
  44. math

    how to find the length, height and depth of box sides when you know the cubic volume is 216?

    asked by adam
  45. language arts

    can you please help me unscramble these words. nnreital cicnoflt reexatln ciclontf yucataid enruta

    asked by jacob
  46. math

    need help with v-4(4-v)=-22(2v-1)

    asked by Ann
  47. HS Calculus

    Have some more that I do not understand. Limit theta approaching zero SinTheta minus Tan theta/ sin cubed theta

    asked by jane
  48. Math

    how do you solve an equation with letters on both sides example y+1/2=-1/3(x+1/2)

    asked by Sam
  49. Physics SHM

    Whether or not it'll help me, am i safe to deduce that: If a simple pendulum is released from rest at time t=0; from a displacement of x rad from equilibrium; Then the amplitude of the oscilation is also x rad? Thanks

    asked by charlie
  50. HS Calculus

    1) Limit theta approaching zero sin squared theta/ tan theta 2) Lim x appraoches zero x + sin x/x x + sin x/x = x/x + sinx/x 0 + 1 =1 My answer : 1 Is this correct

    asked by jane
  51. physics oscillator energy

    a block of wood of mass 0.25kg is attached to one end of a spirnf og constant stiffness 100N/m. The block can oscillate horizontally on a frictionless surface, the other end of the spring being fixed. a) calculate the maximum elastic potential energy of

    asked by Jess
  52. Math

    Need help in solving 0.5b+3.4=0.2b+12.4

    asked by Maddy
  53. algebra

    how would you factor 25z^2 + 16

    asked by anna
  54. college algebra

    (x-3)^2+(y-2.5)^2=7.25 Make a new equation that shifts up 1 unit and to the right 2 units. I got (x-5)^2+(y-1.5)^2=7.25, but I got it wrong on my test. Could you please tell me where I might have gone wrong? Thank you!

    asked by jenny
  55. history

    I have to find out as much as I can about the Chartists. Please could you recommend some good sites or info. thanks pete

    asked by pete
  56. Business

    Describe two criteria used to assess a market's potential for a new product. Based on these criteria, what are the steps the managers of a global company will nedd to take in order to decide whether a foreign market is viable market in which to introduce a

    asked by will
  57. math

    I have a revolving credit account that uses the aerage daily balance to calculate finance charges. during april 2007 ( amonth with 30 days) I had an unpaid balance of $445.12 for 18 days and a unpaid balance of $221.38 for 12 days . How do you calculate

    asked by unknown
  58. English composition

    This is my digital camera. I will explain this digiatal camera. Push the power button on the right on the top. Then you can use this one. When you push the power button, you can have the picture mode. Press the button on the far right on the top. Then you

    asked by John
  59. Calculus

    Can someone explain the method of implicit differentiation to me. I know that we differentiation both sides of the equation with respect to x (I don't understand what they mean by with respect to x). And then y is a function of x...I don't understand what

    asked by Samantha
  60. Math

    There were 60 students who tried out for the school play. Only 0.7 of the students were selected to be in the play. What fraction of the students were not selected to be in the play?

    asked by Bob
  61. math

    112 1/2% of .64 =

    asked by alishia
  62. Math

    simplify: x^2/x^2+1

    asked by Khrissy
  63. health project

    i am supposed to write about philosophy of health and it due tomorrow. can anyone give me ideas how i should start....plz... i know what to wrote in there but i just don't know how to start..... thanks!

    asked by Please Help me!
  64. Humanities

    Postman creates a taxonomy: tool-using cultures, technocracy and technopoly. Do you think these are reasonable ways to divide cultures? If so, which one of the three best describes our society? Explain why. *Is there any good website i culd use to explain

    asked by Susan
  65. Humanities

    McLuhan argues that we are now in an electronic age and have “re-tribalized.” Is this true? Use some examples to support whether or not we have entered a “re-tribalized” age? wat does it mean by re-tribalized??

    asked by Susan
  66. Issues

    I need help finding some major issues in new jersey! please help!

    asked by Jennie
  67. math

    what are the modifications and x intercepts of the cubed root of (1-x)-1?

    asked by Confused
  68. ethic&belief?

    is ethic and belief related or does does it have a vast difference?

    asked by Anonymous
  69. Interview

    i have an interview tomorrow about the public issues in ohio and the future of ohio how do i go about talking/appearing/etiquette?

    asked by Kira
  70. Geography

    Which parts of the world are experiencing a very high increase in population?

    asked by Julia
  71. biology

    What is the primary structure for gas exchange in the respiratory system, how is it deisgnedf or the job?

    asked by bill
  72. Intro to Computer Programming - Pseudocode

    This assignment (below) jumped way ahead of my abilities compared to the last assignment. I think I need a parallel array or a 2D array, an accumulator or loop counter, a verification of input, and Boolean something. But I'm not sure how to write it. We're

    asked by Lauren
  73. college

    About the acre woods retirement community case study.... What are some potetial legal and ethical issues present in this case study? How would you charactorize the director's behavior? were the director's messages congruent with the organization's stated

    asked by dianne
  74. Algebra 2

    Find the vertex and axis of symmetry of the parabola when y=-3x^2+12-8

    asked by Kiley
  75. Physcial science

    How many joules of heat are required to melt 40kg of ice at 0 degrees celsious?

    asked by Jordan
  76. math

    find the zeroes of the equation: x^2+x-6=y

    asked by Anonymous
  77. prealgebra

    the height of a tringle is 3 ft longer then the base. the area of the trianlge is 35 sqft. find the hight and base of the triangel.

    asked by jackson
  78. Social Studies Help NEede!

    Was Christopher Columbus a hero or a villian? [I suggest thinking and going online to find sources that will tell you more about the ambitious leader! You'll be surprised!]

    asked by Mary
  79. Math

    Independent Events Two dice are rolled. What is te probability of each event? 1. The numbers total 9. 2. The numbers total 2. 3. Both dice display the same number. 4. The sum of the numbers is not 8. Please help, I don't get this.

    asked by Larry
  80. Algebra 2

    solve the equation: x^2-x+2=0 is 1+9i/2 the correct answer?

    asked by Kiley
  81. g

    Why is doubling time so low in African countries?

    asked by Mark
  82. Humanities

    why is tool-using cultures, technocracy and technopoly are reasonable ways to divide cultures?

    asked by Susan
  83. American Lit.(Poetry)

    I need to find these in this poem: 1.Apostrophe:The addressing of a discourse to a real or imagined person who is not present; also a speech to an abstraction. 2.Synecdoche:A figure of speech in which a part stands for a whole, or a whole for a part.

    asked by Charley
  84. Help me please!!!

    Hi, I have an assignment in which i am supposed to identify a good citizen in my community. i need to write an essay on why he/she deserves that title. The problem is that i have just moved to this country so i don't know many of the people here and what

    asked by Ayushma
  85. Humanities

    what does technocracy mean ?

    asked by Susan
  86. Geography

    How is the economy in Northeast United States? What are the most popular job opportunities of the Northeast United States? Thank you :)

    asked by Lily
  87. Geo

    Identify two responsibilities that you think governments have with respect to population growth. Would that be like the food source, homes education etc???

    asked by Julia
  88. Math

    Mark is 11 years older than his sister. In 8 years he will be twice as old as she will be then. How old are they now?

    asked by Anonymous
  89. Chemistry

    How does understanding chemistry help us in todays world

    asked by laly
  90. Square Root Help!!! Urgent:)

    Can you help with these please? I'm so bad at them!! 1. square root 160 2. square root -99 3. - Square root -169 4. square root -12

    asked by Angellove
  91. Algebra 2

    Write the expression as a complex number in standard form. (5-2i)-2(3+i) Please explain how to do this. I don't know how.

    asked by Kiley
  92. com150

    week 3 checkpoint 1 and 2

    asked by ciera
  93. Physics

    Understanding Newton's First and Second Laws, why do all objets near Earth accelerate at a constant rate "g"? I'm very confused, is it something about how inertia keeps the objects accelerating? Please help , thank you.

    asked by Gerrad
  94. math

    what happened when two fruit companies merged?

    asked by stace
  95. Science: Chemistry

    Balance this chemical equation please! ___ CuSO4 + ___ Mg -> Cu + MgSO4

    asked by Sarah
  96. High school

    I am a junior, what are good things colleges look for in you resume besides good grades/community service. I have good excurricular activity-music/sports i am looking for things like leadership summits, national honors society, internships, gov. school?

    asked by Alicia
  97. Math

    2 cyclists start at the same tiem from opposite ends of a course that is 45 miles long. One cyclist is riding at 14 mph and the second is riding at 16mph. How long after they begin will they meet?

    asked by Amir
  98. science

    why is it an advantage for organisms to have more than one means of reproduction?

    asked by Anonymous
  99. AP Chem

    Complete and balance each of the following molecular equations, including phase labels, if a reaction occurs. Then write the net ionic equation. If no reaction occurs, write NR after the arrow. H2CO3(aq)+Sr(OH)2(aq) -> this is what I put but I think its

    asked by Anna
  100. Math

    At 11:00am a car (1) leaves city "A" at a constant rate of 60 mi/hr toward city "B". AT the same time a second car (2) leaves city "A" at the constant rate of 50 mi/hr. The distance between cities A and B is 220miles and a highway used by the two cars

    asked by Amir
  101. books

    In the book "The Great Gatsby" why has Gatsby called off his parties?

    asked by Shai
  102. AP Chem

    A 3.50 g sample of KCl is dissolved in 10.0 mL of water. The resulting solution is then added to 60.0 mL of a 0.500 M CaCl2(aq) solution. Assuming that the volumes are additive, calculate the concentrations of each ion present in the final solution.

    asked by Anna
  103. science

    plse help me with this How are valance electrons involved in the formation of covalent bonds? How do atoms in covalent bonds become slightly negative or slightly positive? explain how attractions between molocules could cause water to have a higher

    asked by Amy
  104. eng

    hows my outline look? Outline: 1)Post secondary education is unaffordable A)Poor students can’t afford tuition (Stat) tuition has increased by Fifty-percent B) The Government has implemented grants, scholarships and student loans to help. Thesis: I’m

    asked by ben
  105. calculus

    Find the area of the largest rectangle with one corner at the origin, the opposite corner in the first quadrant on the graph of the line f(x)=20-5x , and sides parallel to the axes.

    asked by ali
  106. AED / ASAP PLEASE

    150 words needed for How can English language arts teachers create a literacy-rich environment in their classrooms? How can these teachers overcome obstacles to literacy or resistance on the part of students? 150 needed for this Language arts contains both

    asked by troyer0269
  107. MATH

    What are the vertical asymptotes and the point of discontinuity for: x^3-2x^2+x/x^3-x^2-2x Does it intersect any asymptote?

    asked by Crystal
  108. government

    how do congress and the president balance each other?

    asked by deb
  109. AP Chem

    An aqueous solution contains 4.50 g of calcium chloride, CaCl2, per liter. What is the molarity of CaCl2? When calcium chloride dissolves in water, the calcium ions, Ca^+2, and chloride ions, Cl^-, in the crystal go into the solution. What is the molar

    asked by Anna
  110. English

    What does this question mean: What appeals you about the poem??

    asked by NeedHelp
  111. government

    what does a bill need to do to get passed?

    asked by deb
  112. English-Poetry

    can someone help find "The Dying Eagle" by E.J. Pratt for me i need it for my poetry assignment and give me the site address. plz and ty

    asked by Tony
  113. math

    I have a revolving credit account that uses the average daily balance to calculate finance charges. during april 2007 ( amonth with 30 days) I had an unpaid balance of $445.12 for 18 days and a unpaid balance of $221.38 for 12 days . How do you calculate

    asked by unknown
  114. biology

    Should the contractile vacuole of a paramecium be ACTIVE when the paramecium is in a hypotonic environment?

    asked by katie=]
  115. Calculus

    If the tolerance on the volume of a cube is a 2% error then what should the tolerance be fore each side? So what i did was V=x^3 dV = 3x^2 dx dV/V = 2% What should I do next? the answer is 2/3% but I don't know how it works. Thanks.

    asked by Andrew
  116. Math

    What are the steps in finding the diff quotient for f(x)= sq rt of x?

    asked by Kassi
  117. PIGSKIN GEOGRAPHY

    WHAT KIND OF GRAINS ARE IN CEREAL BESIDES CORN, WHEAT, AND OATS?

    asked by ANNA
  118. Math

    f(x) = log (2x - 5) is the argument 2x-5?

    asked by Shania
  119. maths....help

    2z>2.1 or 3z

    asked by Anonymous
  120. Calculus

    Can someone explain the method of implicit differentiation to me. I know that we differentiation both sides of the equation with respect to x (I don't understand what they mean by with respect to x). And then y is a function of x...I don't understand what

    asked by Samantha
  121. laww.

    If you were born in 1994 do you have to be 16 to get your temps in ohio ?

    asked by Kristin;
  122. 11th grade

    I need help with substitution math.

    asked by Gaby
  123. Math

    what is the "expanded" form of ln[x2(x-2)/(x+1)]?

    asked by Private
  124. Science

    Infer why the output force exerted by a rake must be less than the input force?

    asked by Amy
  125. Science

    Whats is Sciences?

    asked by Amy
  126. 3rd grade

    Does anyone know what the 1-1-1 rule in regards to spelling?

    asked by Kristina
  127. PLEASE HELP!!1

    Does $1000 at a rate of growth of 12% compounded continuously grow more slowly than $120,000 at a rate of growth of 12% compounded continuously?

    asked by Kristy
  128. 4th grade Science

    My daughter is learning translation and rotation in science right now...what is translation in regards to science?

    asked by Katie
  129. ENVIRONMENTAL SCIENCE

    Post your response to the following: Reflect on your own worldview and compare it with the worldviews presented in the text. Provide examples of the benefits of your view to defend your position. Please help!! If you can before thursday 11/6/08

    asked by Lala
  130. calculus

    are the deritives of sin and cos functions inverses

    asked by Anonymous
  131. intermediate algebra

    Find the equation of the line that pass through the given point and is perpendicular to the given line. Write in slope intercept form. (0,0), y + 3x = -12 would I subtract 3x from both sides? if so would the slope be -3x? m = 1/3 , (0,0) y-y1, m(x-x1)

    asked by jennifer
  132. health care

    What current issues affect communication in health care organizations?

    asked by april
  133. Genetics

    Whats a homolog?

    asked by Lena
  134. health

    What are advantage and disadvantage of vertical hierarchy and vertical communication?

    asked by april
  135. science

    Post a 200- to 300-word response to the following: Discuss an environmental problem that you feel is significant in your town or city. What are some causes? Are any of these causes related to human values and environmental ethics? Explain I really need

    asked by Lala
  136. Genetics

    What are three sources of emobroyonic stem cells and how are they obtained from each? This is what I have so far: 1. Blasocyst of an embyro 2. Embilical cord of a baby 3. ? I don't understand how to explain how to obtain them. Don't you just remove them?

    asked by Lena
  137. Chemistry please help

    Suppose that the microwave radiation has a wavelength of 12.4 cm. How many photons are required to heat 255 mL of coffee from 25.0 C to 62.0 C? Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184 J/(g/ K), as water

    asked by Saira
  138. Math

    what is the value of the number 6 digit 4,560,000

    asked by Zaria
  139. HS Calculus

    Help Have some more that I do not understand. Limit theta approaching zero SinTheta minus Tan theta/ sin cubed theta

    asked by jane
  140. HS Calculus

    1) Limit theta approaching zero sin squared theta/ tan theta 2) Lim x appraoches zero x + sin x/x x + sin x/x = x/x + sinx/x 0 + 1 =1 My answer : 1 Is this correct

    asked by jane
  141. 5th grade

    The state of Minnesota has 15 citizens.They have 10 electors. In the election of presidency, Justin has 7 votes and Mia has 8 votes. How many electoral votes did Mia win? How many popular votes did Mia win? Please Help.

    asked by Gage
  142. 8th grade science

    what is the difference between sexual and asexual reproduction

    asked by Dondre
  143. geography

    who was once controlled by the united kingdom?

    asked by dylan shadoan
  144. Technology ..Urgent help

    Analyze an example of new technological use that contradicts the principle of technological determinism. In other words, think of an example in which culture, social context, or other factors result in very different uses of an identical technological

    asked by Susan
  145. Literature --- Macbeth

    How does the number three, linked with magic, play an important part in the witches prophecy?

    asked by Jackie
  146. Chemistry

    What is the H+ ion concentration of this solution? A solution is made by dissolving 0.0112 g KOH in enough water to make 1.0 liter of solution. What is the H+ ion concentration of this solution? a. ) 2.0 x 10-3 M b. ) 8.0 x 10-2 M c. ) 1.2 x 10-13 M d. )

    asked by Angelo09
  147. Chemistry

    The following redox equation occurs in acidic aqueous solution. When it is balanced with the smallest whole number coefficients, what is the coefficient for chlorine gas? KMnO4(aq) + KCl(aq) + H2SO4(aq) = MnSO4(aq) + K2SO4(aq) + Cl2(g) a. 1 b. 3 c. 5 d. 8

    asked by Angelo09
  148. AP Chem

    A chemist added an excess of sodium sulfate to a solution of a soluble barium compound to precipitate all of the barium ion as barium sulfate, BaSO4. How many grams of barium ion are in a 458-mg sample of the barium compound if a solution of the sample

    asked by Anna
  149. integrated science

    describe why chemist might sometimes store reactive chemicals in argon,Ar.

    asked by taylor
  150. HSM230

    Assignment: HSM Law Profile Paper · Due Date: Day 7 [Individual] forum · Select a current or proposed law that impacts the delivery of human services. · Write a 1,050- to 1,400-word paper in APA format that answers the following questions: o What

    asked by Loey
  151. AP Chem

    A solution of hydrogen peroxide, H2O2, is titrated with a solution of potassium permanganate, KMnO4. It requires 51.7 mL of 0.145 M KMnO4 to titrate 20.0 g of the solution of hydrogen peroxide. What is the mass percentage of H2O2 in the solution? If you

    asked by Anna
  152. chemistry

    an auto mechanic spills 85 mL of 2.4 M H2SO4 solution from a rebuilt auto battery. how many mL of 1.2 M NaHCO3 must be poured on the spill to react completely with the sulfuric acid?

    asked by james
  153. literature

    Write 2 sentences on drama and cause and effect. I don't understand. Can you help me please?

    asked by Sam