# Questions Asked onJanuary 21, 2007

1. ## Chemistry

I am having trouble understanding dipole moments. I can't figure out why that a tetrahedral CF4 molecule, trigonal planar SO3 molecule and a octahedral H2SF4 molecule are non-polar while a H2CF2 is polar? I hope I explained that well and thanks! For CF4,

2. ## Chemistry

What is the volume of a paperback book 21cm tall, 12 cm wide, and 3.5 cm thick? just multiply them all together, so do 21 x 12 x 3.5 = and that will be the answer =)

3. ## chemistry

Need Help Finishing: Purpose: • To observe a chemical reaction. Materials: • Vinegar (acetic acid, CH3COOH) • Baking soda (NaHCO3) • Measuring cups and spoons • Cup Procedure: 1. Place ½ cup of vinegar in the cup. 2. Add 1 tablespoon on baking

4. ## History Help

Which of the following statements about Federalists is true? a. They called for a strict interpretation of the Constitution. b. George Washington founded their party. c. They were generally supported by farmers. d. A strong national government was of great

5. ## i need ur help in compiler construction

Q: Given the following 3-address code 1: a = 1 2: b = 2 3: c = a + b 4: d = c - a 5: if( d < 20 ) goto 11 6: d = b * d 7: if( d > 20 ) goto 11 8: d = a + b 9: e = e + 1 10: goto 6 11: b = a + b 12: e = c - a 13: if( e < d ) goto 3 14: a = b * d 15: b = a

6. ## math,algebra

Use the five properties of exponents to simplify each of the following expressions (y^5)^3(y^3)^2 divided by (y^4)^4 can someone show me how to solve these types of problems (y^5)^3= y^15 multiply the powers (y^3)^2=y^6 multiply the powers again as you

7. ## math

a large cube is built from centimeter cube. faces of large cube are painted 1000 are unpainted what is the edge length ,how many are painted on one face two face and three faces If 1000 are unpainted, that must mean that the inner dimensions are 10x10x10.

8. ## Chemistry

Would you store a solution of zinc nitrate in an aluminum container? Use half-reactions to explain your answer. Al ==> Al^+3 + 3e Zn ==> Zn^+2 + 2e Look up the above half reactions and you will see that the Al will go into solution and the Zn+2 will come

9. ## Literature

Do you think the title "Huswifery" is a good title for Edward Taylor's poem? Why? Linda, if you will tell us what you think about this title, we will be happy to give you suggestions. We don't do your homework for you. hopkin's use of "seared," "blesred,"

10. ## Chemistry

How does weight differ from mass? Weight changes with gravity while mass does not change.

11. ## Chemistry

Need help with these conversions please 0.08206 Latm/molxK to cal/molxK ? 0.08206 Latm/molxK to J/molxK ? I will be happy to critique your work. You have the conversion coefficents. 0.08206 X 101.3 = 8.31 cal per molK 0.08206 x 4.184 = .343 J per molK

12. ## PHYSICS HELPPPPP

A diver descends from a salvage ship to the ocean floor at a depth of 35 m below the surface. The density of ocean water is 1.025x10^3 kg/m^3. a) Calculate the guage pressure on the diver on the ocean floor. b) Calculate the absolute pressure on the diver

13. ## Chemistry

What the relationship between degrees Celsius and Kelvins? A one degree change in Celsius = a one degree change in Kelvin.

14. ## Media Role in Political Process

Accessing information from a variety of user locations and obtaining information on a specific topic from multiple sources are advantages of using_________ as a news source. A. a national newspaper B. National Public Radio C. a Public Library D. the World

15. ## Chemistry

How do i Convert 170 degress C to kelvins? K = 273 + C

16. ## Chemistry

delta T = ikfm delta T is the amount f.p. is lowered. i is the number of particles; i.e., Na3PO4 will have i = 4 (3 for Na and 1 for PO4). m is molality. k is a constant and need not enter into the calculations. Arrange the following solutions in order of

17. ## Chemistry

Which solution has the lower freezing point? (a) 90.0 g CH3OH in 100. g H2O 180.0 g CH3CH2OH in 200. g H2O (b) 70.0 g H2O in 1.00 kg CH3OH 70.0 g CH3CH2OH in 1.00 kg CH3OH delta T = Kf m convert 90 g CH3OH to mols mols/kg solvent = m (kg solvent = 0.1) do

18. ## Employment

What effect will the privatization of currently state-run enterprises have on the employment levels in those enterprises in the short run? and in the long run? In the short run, employment will drop as the enterprise will have to reduce operating costs to

19. ## Chemistry

Asprin, c9h804, is produced through the following reaction of salicyclic acid, c7h6o3, and acetic anhydride, c4h6o3. chemical equation: c7h6o3 + c4h6o3 yields c9h8o4 + hc2h3o2 (all numbers in this equation are subscripts) At 20 degrees Celsius. how many

20. ## Potential Energy Q

Q A rollercoaster of mass 400 kg is stationary at the highest point on the track. It then drops to the lowest point through a vertical distance of 24 m. Calculate: a) the potential energy of the car at the top of the ride. b) the speed of the car at its

21. ## Networking

Explain the following. a)Enhanced IGRP. b)Enhanced IGRP Features. c)Enhanced IGRP Components. Explain the following. a)Enhanced IGRP. b)Enhanced IGRP Features. c)Enhanced IGRP Components.

22. ## Religion , help

Okay so can someone just tell me what questions i should answer that consist of what there needs to be for the following major titles which are: this is for a powerpoint presentation that needs to have slides in each one for every topic approx.5lines,and

23. ## algebra,math

i am clueless about this: (#1)What expression raised to the fourth power is 81x^12y^8z^16? (#2)Simplify each of the following expressions. Write your answers with positive exponents only. (x^2)^-3(x^-2) divided by (x^2)^-4 #1 answer (3x^3)(y^2)(z^4)

24. ## Maths

use the formula cos(x+iy)=cosxcosiy-sinxsiniy to find two imaginary numbers whose cosine is 3 cos(x+iy)=cosxcosiy-sinxsiniy = cos(x)cosh(y) - i sin(x)sinh(y) = 3 Equating imaginary parts gives: sin(x)sinh(y) = 0 You know that y cannot be zero, otherwise

25. ## Claculate engine thrust

Calculate the engine thrust required to produce an acceleration of 4 m/s^-2 in a jet of mass 800 kg as it takes off along the runway. The air resistance is 500 N. I used F - R = ma F - R = 800 x 4 F - 500 = 3200 Thrust = 3700 Appreciate if anyone can check

26. ## Angular acceleration

A flywheel of 480 mm diameter is accelerated with an angular velocity of 0.4 rad/s^-2 from rest by an electric motor until it is rotating at 400 revs/minute. Calculate: a) the time of acceleration b) the linear speed of the rim of the flywheel My answer

27. ## Christianity?

I'm in the middle of writing an essay and one point I have to mention is the two different beliefs within Christianity. What are the two main beliefs of Christianity? 0_o Two different beliefs? There are many more than that. Here are some. Virgin Birth.

28. ## HISTORY HELP :(

MANY PEOPLE SUPPORTED COMMUNIST OR FASCIST GOVERNMENTS IN THE 1920'S AND 1930'S BECAUSE OF THE FAILURE OF DEMOCRATIC GOVERNMENTS TO DEAL WITH THE PROBLEMS OF LIFE AFTER THE DESTRUCTION OF WORLD WAR ONW. TO WHAT EXTENT DO I HAVE TO AGREE WITH THIS STATEMENT

29. ## History 2 questions

Please help if you can. 1. The idea that the people have the right to abolish an abusive and unresponsive government was FIRST formally expressed by Americans in the a. Constitution b. Petition of Right c. Declaration of Rights d. Declaration of

30. ## debating

i have a debate tomorow and the motion is wedlock is padlock. We are against but i have no idea what pionts to use. Kids are permanent, need stability, and emotional support. Kids do not thrive in a tense household. As a nation, as a culture, having

31. ## Pump power

I have a question in a tutorial, one of these that give the answers in brackets. However, I think the answer given may be wrong. Anyone check this please, if the given answer is correct, how is it worked out. Q A centrifugal pump is required to lift 400 kg

32. ## History

Please help. Literacy tests worked to dany the right to vote to African Americans primarily because a.. all white voters had higher literacy rates. b. the tests were only required in Southern States. c, African Americans were asked questions that were more

33. ## U.S. Government--Need Help !

I have this question on an assignment and I need help. Many believe that political parties are incapable of serving as an avenue for social progress because: A. party positions change so frequently. B. the leaders who draft party platforms are generally

34. ## Science-Ionic vs. Covalent

What are the physical properties (appearance) of Ionic and Covalent Compounds? [I need to make a chart comparing the two] thanks you.

35. ## Democrats vs. Republicans 2000 platform-- Question

Which of the following best describes the difference between the Democratic and Republican party platforms in 2000 on the issue of school choice? 1. Republicans favored increasing property taxes that private schools have to pay. 2. Democrats favored

36. ## Chemistry

Where can i find the quanity measured by each of of the seven SI base units and the SI symbol of the unit. Here: http://www.chemie.fu-berlin.de/chemistry/general/si_en.html thanks

37. ## Chemistry

Okay so I'm doing an assignemtn and one of the questions has stumped me. It asks: The solid fuel booster rockets on the space shuttle employ a mixture of aluminium and ammonium perchlorate. The reaction is: 2Al(s) + 2NH4ClO4(s) â†’ Al2O3(s) + 2NO(g) +

38. ## Computer graphics

Determine the equation for a cubic spline segment passing through two end points A (0, 5) and B (10, 20), having a slope of 2 and a curvature of -0.5 at A. Equation for cubic spline is:

39. ## Chemistry

What type of reaction is involved in the making of Polypropylene? Would it be a synthesis reaction? The final step is a polymerization reaction. Before that, the propylene (C3H6) is made in a cracking reaction from heavier hydrocarbons. Thank you. :)

40. ## grammar

In each passage that follows, connect the two sentences by converting one of them into a dependent (or subordinate) clause. Change the wording if necessary. Here are some subordinate conjunctions you'll find useful: after since although unless as when

41. ## physics

The final charge on each of the three separated spheres in part (c) is +3.0 µC. How many electrons would have to be added to one of the three spheres to make it electrically neutral? Divide 3*10^-6 Coulombs by 1.6*10^-19 Coulombs per electron. The will be

42. ## Iron Ions

Does anyone have the tests for iron(II) and iron(III) ions lab done? If you want to know something about Fe(II) and Fe(III) please post a new question. sadddddddddd I love to spelunk with my friends. It is such a hot rush! I also like to experiment with

I need to write a hypothesis for a lab ex. I think that ionic compounds will be soluble in water because the polar molecules in H20 cause the compound to break apart and dissolve in the water. but another part is the appearance of ionic and covalent

44. ## math

3x^2+11x-20=0 (3x -4)(x + 5) = 0 x = 4/3 or -5

45. ## probability

A coin is biased such that a head is thrice as likely to occur as a tail. Find the probability distribution of heads and also find the mean and variance of the distribution when it is tossed 4 times. See

46. ## math

Ken's average driving speed is 25km/hr faster than Jim's. In the same length of time it takes Ken to drive 279 km, Jim drives only 204 km. What is Ken's average speed? Possible Answers: a) 93 km/hr b) 118 km/hr c) 43 km/hr d) 68 km/hr Let x equal the speed

47. ## math

Billy Jeans' profit is given by the equation y=2.7-.0000015(x-2550)^2, where x represents the number of units manufactured and y represents the profit given in millions of dollars. What is the maximum possible profit? a) 2.55 billion dollars b) -7.1

48. ## algebra

-5+n+16=-3 -5+n+16=-3 n = -3 + 5 - 16 n = 2 - 16 n = -14

49. ## Chemistry

What order do i arrange the units so they can be from largest to smallest? m superscript 3, mL, cL, UL, L, dL. kilo hecto deca unit deci centi milli ----------- All of the above are by a factor of 10 from top to bottom (becoming smaller); 1 kilogram = 1000

50. ## Physics

Calculate the period of the wave if it makes 10 vibrations in 2 seconds. Does anyone know the formula for this? frequency = (number of waves) divided by(observation time) = 10/2 = 5 Hertz period = 1/frequency = ?

51. ## physics

The magnitude of the charges is |q| = 7.8 µC, and the distance between them is d = 2.7 mm. Charge 2 is attracted to charge 1, because they are opposite charges. Charge 2 is repelled from charge 3, because they are like charges. Therefore, both 21 and 23

52. ## Math

How do I express these in scientific notation AND Log10 form? 1) ln(8.1) 2) 32.8 x 10^-2 + 3.15 x 10^-1 3) 10^-2 x 10^4.5 4) 10^-45 5) 8^2.34 I will be happy to critique your work here. Most of these require conversion. Do the math, and let your calculator

53. ## chemistry

how do I convert kcal/mol to kJ/mol? how do I convert cal/mol to kJ/mol? So the question really is converting calories to joules.. 1 cal= 4.184 joules

54. ## chemistry

Need help with these conversions please 0.08206 Lxatm/molxK to cal/molxK ? 0.08206 Lxatm/molxK to J/molxK ? Thanks. 1 liter*atm= 101.3 joules = 101.3/4.18 calories

55. ## math

a cube has an edge length of 12cm faces of large cube are painted how many are painted on 3,2,1 and how many are unpainted This makes absolutely no sense to me. Sorry.

56. ## chemistry

Given: [SO4^2-] in a 0.2M NA2SO4 solution How do I express this in meq/l? There are .2*2 equivalents per liter, so there must be 1000 times that of meq/l. If you want it in grams, that is another conversion. So, the answer would be 400 meq/l. Do you need

57. ## math

round 5738 to the nearest ten 5740

58. ## MAth

Find X 43x^3+13x^2+18x = 456 2x(3x+2)^2 = 312

59. ## math

faces of alarge cube are painted 864 are painted on one face what is the length edge of large cube how many are unpainted how many are painted on two faces and three faces See my response to your previous question. Use that information for this problem. I

60. ## physics

Three charges are fixed to an x, y coordinate system. A charge of +12 µC is on the y axis at y = +3.0 m. A charge of -14 µC is at the origin. Lastly, a charge of +50 µC is on the x axis at x = +3.0 m. Determine the magnitude and direction of the net

61. ## math

a cube has an edge length of x cm write an equation for the volume v of the cube in term of x . if the length of each edge were doubled how would the volume change if the length were tripled how would volume x³ i mean the equation would be v=x³

62. ## Fuction Notations

how might !@#\$%^&tion notations be useful in my every day life?

63. ## help...chemistry

i am stumped on this. please help. Balance the following equation and give the value of the stoichiometric coefficient marked with a question mark. 48KNO3 + _ C12H22O11 ---> ? CO2 +_ N2 + _K2CO3 +_ H2O thanks I left the CO2 for you but it will balance.

64. ## U.S. Government

A/An__________ is a citizen who is involved in the political process and only supports canidates who want to enact laws that would allow prayer in public schools. Is this a candidate activist or a issue activist? I'm thinking this is an issue activist, am

65. ## Econ(again)

When state-owned enterprises are sold, how should their values be established? Should the value be based on the cost of the assets in place, the past earning power of the enterprise, or the future earning potential in a competitive economy? The value

66. ## chemistry

Why does an iron ion attract a sulfide ion but not a zinc ion? The iron ion and the zinc ion are positive and don't attract each other. The sulfide ion is negative and is attracted both to the iron ion and to the zinc ion.

67. ## French Grammar

I have sixteen pages of grammar, I am lost! Thank you for using the Jiskha Homework Help Forum. First of all, what is the textbook, author, chapter, etc. Without any examples of what you are to do, how do you expect us to help you?

68. ## significant figures

hi what is 43342 to 1sf because my old maths teacher said if you put zeros after the first number then they count as sf too, but on bbc bitesize it says the answer is 40000?? that is true because 43342 to 1sf is 4e4 which is 40000 the one sig fig is

69. ## MLA style

i am writing a research paper.and i qoute some sentences from one essay.do i put in brackets her lastname and lines from her essay or ? i have to use MLA style i was on their site but i do not understand a thing.and at the end i wrote citing source but

70. ## English

started writing essay on "The Undomestic Goddess" how people try to run away from their mistakes only to have them haunt them later. Samantha ran away fro her problems. Having a hard time writing enough substance about this. Isn't this book a light, cute,

71. ## Chemistry

A sample of InCl3, is known to be contaminated with NaCl. The contaminated sample weighs 2.84g. When the contamintaed sample is treated with excess AgNO3(aq). 574 grams of AgCl(s) are obtained. What is the percentage by mass of InCl3 in the sample? (All I

72. ## ms.sue, religion help

see i know that there is information on judaism. but see i have the titles but i have to convert each title intot a slide that describes/explains judaism to a 9yr.old kid. now the thing is that for each slide there can only be approx. 5lines and 5 words

73. ## HELPPPPP

A diver descends from a salvage ship to the ocean floor at a depth of 35 m below the surface. The density of ocean water is 1.025x10^3 kg/m^3. a) Calculate the guage pressure on the diver on the ocean floor. b) Calculate the absolute pressure on the diver

74. ## Natasha

When analyzing responses to a survey, "latency" refers to: A. opinions that will only crystallize if certain action is taken by a leader. B. the scale of how intense a person's belifs are. C. the extent to which people believe issues are relevant to them.

75. ## Math

How do I express these in scientific notation AND Log10 form? 1) ln(8.1) 2) 32.8 x 10^-2 + 3.15 x 10^-1 3) 10^-2 x 10^4.5 4) 10^-45 5) 8^2.34 Please show some effort, and please stop posting under multiple names.

y=-x Thanks.

77. ## Voting Question

Which is true? 1.People are more likely to vote in presidential elections than they are to vote in congressional elections. (or) 2.People are more likely to try to persuade how someone else will vote than they are to read about campaigns in the newspapers.

78. ## Law

Can anyone link me to a detailed list of possible careers in the legal system? I already have some of the basic knowledge down. Prisoner. Judge court clerk law clerk legal librarian legal reporter paralegal lawyer policeman, or trooper jailer probation

79. ## Law

Can anyone link me to a detailed list of possible careers in the legal system? I already have some of the basic knowledge down.

80. ## another voting question

Casting a vote based on what a candidate pledges to do about certain issues is called: prospective issue voting or retrospective issue voting Isn't this called prospective issue voting? yes... you are right. My experience is it more closely relates to

81. ## physics... part a on

A diver descends from a salvage ship to the ocean floor at a depth of 35 m below the surface. The density of ocean water is 1.025x10^3 kg/m^3. a) Calculate the guage pressure on the diver on the ocean floor. b) Calculate the absolute pressure on the diver

82. ## Iraq

can you find a site of a total # of troops that have died since the president's new plan http://siadapp.dior.whs.mil/personnel/CASUALTY/castop.htm I went to http://www.fedstats.gov to find this. =) I found this site that shows that 53 troops were killed in

83. ## Pre-Calc

Does y=1/x have an inverse? It is a one-to-one function, so it should be the inverse equation is the same??? yes, the inverse is the same. Check it with G(f(x)) So, when drawing the inverse, it is just the same graph?

84. ## math

Still looking at how to solve these... Both are cubic polynomials? 43x^3 + 13x^2 + 18x - 456 = 0 DO I divide first by x-1? 2x(3x+2)^2=312 Honestly: I would graph the equations and find the roots first. I don't see them off hand. graph y=43x^3 + 13x^2 + 18x

85. ## religion help

I just need help in these three:what points would be good talk about the (#1) different sects of judaism (modern day) (#2)the nation of Israel (#3)Judaism today Modern-day Judaism has three sects. They are the Orthodox (the strictest), the Conservative,

87. ## Math

What is divisor? What is dividend? If x is divided by y, x is the dividend and y is the divisor.

88. ## Health/Fitness

It is good to exercise so I thought to buy a exercise machine. What are the shops/stores in BOROUGH QUEENS where I can buy exercise machines? You can either look these places up in the Yellow Pages under Exercise Equipment - Retail or you can look them up

89. ## senses, stimulus

what is the stimulus of taste? do i just say when something touches your tongue. i don't know how to explain it. for smell, i put odors and chemicals. is that right? for vision, i put light, color, movement? i need help on taste, itching, pain, pressure,

90. ## us history

What groups fought against the taxes and acts? Which group was most responsible for the actions taken against the Brits? Are you asking about the pre-Revolutionary period in America? Please clarify your question and we'll try to help you.

91. ## math

2/3(7/8-4x)-5/8=3/8 I do not underdtand the steps?? Do I find a common denominator for all the fractions? Step 1. Clear the parentheses. Step 2. Multiply through by 24. Step 3. Solve for x. when I clear the parenthesis do I distribute 2/3 or do I just take

92. ## government

what are "public bills"? http://en.wikipedia.org/wiki/Public_bills

93. ## To:Writeacher

Thanks for your help! I have questions of subject math. What is 100 divided by 50? So 100 is the dividend and 50 is the divisor And answer is 50 Am I correct? What do you call the answer of the division problem? Your answer of 50 is correct. The answer in

94. ## pressure

is light pressure more easy to localize than deep pressure or is the other way around What do you mean light pressure and deep pressure?

95. ## To: Writeacher or Ms. Sue

Grammar.... In each passage that follows, connect the two sentences by converting one of them into a dependent (or subordinate) clause. Change the wording if necessary. Here are some subordinate conjunctions you'll find useful: after since although unless

96. ## science fair- clown fish

I need a topic for my science fair experiment-I'm in the 6th grade and I would like to do something w/ clown fish, but I'm not sure what my hypothesis should be, please help. We own a pet shop so have have a lot of access to salt water stuff. P.S. It can't

97. ## spanish

quieres jugar basquetbol conmigo? Thank you for using the Jiskha Homework Help Forum. What wouyld you like us to do with the question "¿Quieres jugar al basquebol conmigo?" The translation is "Do you want to play basketball with me?" The affirmative

98. ## spanish

for spanish class my teacher asked me to find a translation of the poem Declaracion by Uva A. Clavijo...except i don't know were to find it so if anyone could help that would be great. you can go on spanish web sites Thank you for using the Jiskha Homework

99. ## Gov't

Which of the following is NOT a lon-term trend marking the expansion of suffrage in the U.S.? a. removing restrictive requirements based on religious belief b. the Federal Government taking less of a role in protecting suffrage rights c. eliminating

My child was given this riddle as a homework assignment. We are stumped. Q: "The skydiver had fries and a milkshake,why was he nervous?" A: "Because he was _ _(2lett.word) _ _(2lett.word) _ _ _(3lett.word) _ _ _(3lett.word). " Unscramble the letters below

101. ## Algebra & Discrete Geometry

Determine a vector of magnitude 2 that is parallel to a=(-3, 4).

102. ## Sea Creatures (Science)

What is a scallop? In butter, it is a tasty meal. http://www.onelook.com/?w=scallop&ls=a

103. ## Another Media's Role in Political Process/Question

With respect to the media's role in the political process, which of the following statements is true? A. The media fulfills an evaluative function by helping voters judge candidates in terms of character and competence. B. Most politicians do not view the

104. ## Earning capacity

How can we estimated the future earning capacity of an enterprise? Crystal Ball? The key here is estimate. Anyone can estimate. Past performance indicates many future trends. Changing markets indicated changes also. But in reality, these are estimates

I have a few match problems that I can't figure out. 1.solve: 3x+5=x√7 (that's a radical sign) 2.factor: (2k+3)2-(2x+3)(y-2)-20(y-2)2 (the "2" after (2k+3) ans (y-2) is suppose to be a square sign. thanks if you can help, or even if you can't i ment

106. ## us history

What groups fought against the taxes and acts? Which group was most responsible for the actions taken against the British? What time period are you talking about? ooh.. right before the American Revolution? Here are many sites that discuss/describe the

107. ## Algebra I

So- im trying to help my little brother out with his Algebra- but its been awhile since i have had algebra class- we need help with the following question: Solve the following equation for x: 2(x+4)=4x+12 2x+8=4x+12 2x=-4 x=-2 I think, lol I'll buy that.

108. ## Algebra (new one since I put "match" (bad speller)

I have a few match problems that I can't figure out. 1.solve: 3x+5=x√7 (that's a radical sign) 2.factor: (2k+3)2-(2x+3)(y-2)-20(y-2)2 (the "2" after (2k+3) ans (y-2) is suppose to be a square sign. thanks if you can help, or even if you can't For number

109. ## Algebra

okay- i definetly don't remember how to do this: Give an ordered pair(a,b)of numbers that satisfy the equation: 6a+b=8 Common sense says that a = 1 (6 x 1 = 6) b = 2 6 + 2 = 8 omigosh.. im dumb.. lol - ok thanks!

110. ## math

do decimals really hard when they get more numbers ???

111. ## Algebra

- ok... we keep getting this one wrong: Solve the following equation for x. Write your answer as a fraction in simplest form. -6(x-5)=-2x-8-6(3x-5) What is it you don't understand about this? Clear the parentheses, combine terms, solve for x. Ive been

112. ## Chemisty-Freezing Points

The freezing point of benzene is 5.5°C. What is the freezing point of a solution of 8.50 g of naphthalene (C10H8) in 425 g of benzene (Kf of benzene = 4.90°C/m)? delta T = Kf m m = mols/kg solvent. Change 8.5 g naphthalene to mols and 425 g benzene to

113. ## science

how are table salt and glucose the same Not many ways but both are soluble in water. In fact, that's the only one I can think of at the moment. thanks foe your help

114. ## science

how do the words matter, element, atom, crystal, compound, and molucle relate? Matter is composed of elements which are composed of atoms and molecules and these combine to form compounds that may be crystalline. why do leaves turn water a differnt color

115. ## math-volume

I'm confused with how to solve this problem, so help would be great! The volume of any spherical balloon can be found by using the formula V= 4/3 pi r^3. Write an equation for r in terms of V and pi All this is asking you to do is get r=something. First, I

116. ## math-volume

I'm confused with how to solve this problem, so help would be great! The volume of any spherical balloon can be found by using the formula V= 4/3 pi r^3. Write an equation for r in terms of V and pi 4/3*pi*r3 = V Multiply by 3 3*(4/3)*pi*r3 = 3*V 4*pi*r3 =

117. ## james knox polk

how did he become famous? http://www.whitehouse.gov/history/presidents/jp11.html

118. ## Econ

What effect do lifting of price controls have on inflation in the long run? I need some ideas... I think inflation will eventually be under control in the long run, but i don't know what factors will cause that. Good tough question. Take a shot. I would

119. ## algerbra

how do I solve 4/3x3.14x3.7cubed= You need to use parentheses and explain what the . stands for. And is x what you are solving for or is that a times sign?

120. ## Education

Hello, I need help I have to make my own personal code of Ethics following the NAEYC guidelies and also a statement of commitment as I would have to be able to follow for the classrooms and field experience. I am trying to find somewhere where I can look

121. ## pre-calc

Quest: show that i (imaginary) is a zero of f (x)= x^3+ (3-i)x^2 - 4ix -1 Plug in i for x and add up the terms. You should get zero. Remember that i^2 = -1

122. ## Algebra I-

(solving for x) 3(x+5)=6x-4+7(-7x-1) Each time I try this i plug the numbers in and i find out that i am worng. Please help! I get -13/23 but I didn't check it. Post your work if you want me to check it and find your error.