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Questions Asked on May 6, 2010

Which of the following liquids would make a good solvent for iodine, I2?HCl H2O CH3OH NH3 CS2
1. 4 answers
2. asked by Kari
3. 9,420 views
Calculate the molality of 6.00 M H2SO4 solution. The density of the solution is 1.34 g/mL.
1. 3 answers
2. asked by Kari
3. 8,963 views
five mole of an ideal gas are kept at a constant temperature of 53 degree celcius while the pressure of the gas is increased
1. 2 answers
2. asked by bed
3. 5,100 views
Consider the reaction2Al + 3CuSO4 = Al2(SO4)3 + 3Cu What is the maximum amount of Cu (63.5 g/mol) that could be produced by
1. 1 answer
2. asked by Annalie
3. 4,931 views
If the amplitude of a sound wave is tripled,A.) by what factor will the intensity increase? B.) by how many dB will the sound
1. 1 answer
2. asked by A
3. 4,231 views
when aqueous solutions of copper II nitrate and sodium phosphate are mixed, sodium nitrate and copper II phosphate are formed.
1. 2 answers
2. asked by grace
3. 4,157 views
A baseball diamond is a square 90 feet on a side. The pitcher's mound is 60.5 feet from home. How far does the pitcher have to
1. 2 answers
2. asked by T
3. 4,139 views
how much heat is needed to change 20g mercury at 20c into mercury vapor at the boiling point
1. 2 answers
2. asked by charlo
3. 2,682 views
Two violin players tuning their instruments together hear 8 beats in 2 s. What is the frequency difference between the two
1. 1 answer
2. asked by Anonymous
3. 2,636 views
the practice range at a golf course charges $4.00 for a bucket of 40 golf balls.At this rate,how much will a bucket of 100 golf
1. 4 answers
2. asked by brea
3. 2,534 views
A 215 g sample of a substance is heated to 330 degrees C and then plunged into a 105 g aluminum calorimeter cup containing 165 g
1. 1 answer
2. asked by E
3. 2,187 views
Explain why a heavy rainfall on a fruit orchard in the spring might result in a poor fruit yeild in the fall.
1. 2 answers
2. asked by Christina
3. 2,052 views
katie is going to adopt kittens from a litter of 11. how many ways can she choose a group of 3 kittens?
1. 1 answer
2. asked by Leila
3. 2,001 views
Calculate the pH of a buffered solution that is 0.100M in C6H5COOH (benzoic acid, Ka = 6.4 x 10-5) and 0.100M in sodium benzoate
1. 7 answers
2. asked by Rachel
3. 1,999 views
A 0.0150-m wire oriented horizontally between the poles of an electromagnet carries a direct current of 9.5 A. The angle between
1. 2 answers
2. asked by lakhvir
3. 1,960 views
Magnesium reacts with oxygen to form magnesium oxide according to the following equation:2Mg(s) + O2(g) ==> 2MGO(s) If 0.81
1. 3 answers
2. asked by Danny
3. 1,953 views
Consider the reaction2Al + 3CuSO4 = Al2(SO4)3 + 3Cu What is the maximum amount of Cu (63.5 g/mol) that could be produced by
1. 3 answers
2. asked by Annalie
3. 1,702 views
Find the molar solubility of silver sulfide Ag2S. Ksp is 6.0 x 10^-51.I get 1.1 x 106-17. Right?
1. 1 answer
2. asked by Jim
3. 1,668 views
To what temperature will 7700 J of heat raise 3.0 kg of water that is initially at 10.0 degrees C?
1. 1 answer
2. asked by S
3. 1,459 views
The greatest velocity a falling object reaches is called its what?
1. 2 answers
2. asked by Sophie
3. 1,413 views
Ken is 63 years old and unmarried. He retired at age 55 when he sold his business, Though Ken is retired, he is still very
1. 2 answers
2. asked by Moncha
3. 1,408 views
how to balance this equation?(NH4)2Cr2O7 ---- Cr2O3 + N2 + H2O plz tell step by step.i m a beginner
1. 1 answer
2. asked by abdullah
3. 1,380 views
simplify (^4 square root of 64)Would it be (^2 square root of 4) or (^2 sqyare root of 2)?
1. 1 answer
2. asked by Anonymous
3. 1,370 views
COM/220 Grammar exercise week 31) dangling modifiers 2) misplaced modifiers 3) correcting dangling or misplaced modifiers
1. 0 answers
2. asked by tony
3. 1,335 views
A solution of ethanol (C2H5OH) in water is prepared by dissolving 76.9 mL of ethanol (density 0.79 g/cm^3) in enough water to
1. 3 answers
2. asked by Anonymous
3. 1,334 views
Consider a profit maximizing competitive firm with the following production function: y=L^α+K^β where0 <α< 1 and 0 <β< 1.
1. 0 answers
2. asked by Anonymous
3. 1,301 views
Why is it necessary to wait until the filter paper containing a compound is completely dry before weighing it? and how would it
1. 1 answer
2. asked by grace
3. 1,285 views
a pharmacist mixed some 10% saline solution with some 15% saline solution to obtain 100ml of a 12%saline solution.How much of
1. 4 answers
2. asked by Anonymous
3. 1,273 views
which reactant in the reaction of sodium carbonate and calcium chloride dihydrate is the limiting reactant if 1.00 gram of each
1. 1 answer
2. asked by grace
3. 1,224 views
Provide the correct coefficients to balance the following equation:___ Fe(NH4)2(SO4)2·6H2O + ___ H2C2O4 + ___ K2C2O4 + ___ H2O2
1. 2 answers
2. asked by anonymous
3. 1,208 views
State whether each expression is a polynomial. If the expression is a polynomial, identify it as monomial,a binomial, or a
1. 1 answer
2. asked by Shadow
3. 1,192 views
Calculate the pH of a solution prepared by mixing 25.0 mL of 0.60 M HC2H3O2 and 15.0 mL of 0.60 M NaOH?
1. 3 answers
2. asked by Julie
3. 1,184 views
I need help in understanding this question given by my instructor. I have posted this question to her, three days ago and not
1. 0 answers
2. asked by Wanda
3. 1,176 views
Adam can swin at a rate of 2km/h in still water. At what angle to the bank of a river must he head if he wants to swim directly
1. 0 answers
2. asked by Meg
3. 1,155 views
A market survey has estimate that the probability of a household's subscribing to the following magazines is:Reader's Digest -
1. 1 answer
2. asked by CL
3. 1,152 views
A cylinder of compressed Oxygen is carried on a spacecraft headed for Mars. The compressed gas cylinder has a volume of 10,000 L
1. 1 answer
2. asked by richard
3. 1,151 views
Choose one of the following terrestrial resource challenges:o Loss of agricultural land o Reducing solid waste Post your
1. 1 answer
2. asked by Anonymous
3. 1,109 views
"Three of the coordinates of the parallelogram STUV are S(-2,-2), T(7,7) and U(5,15). State the vector ST and hence determine
1. 1 answer
2. asked by Stuck
3. 1,078 views
Young's Modulus (Y) 20 X 1010 N/m2Shear Modulus (S) 8.1 X 1010 N/m2 Bulk Modulus (B) 16 X 1010 N/m2 The table to the above
1. 1 answer
2. asked by richard
3. 1,063 views
What can be said about opposing forces of attraction when sodium chloride dissolves in water?
1. 1 answer
2. asked by Anonymous
3. 1,046 views
Imagine you are in an open field where two loudspeakers are set up and connected to the same amplifier so that they emit sound
1. 2 answers
2. asked by Mikhail Moskvich
3. 1,043 views
Graph three periods of the function. (identify period and phase shift and intercepts)y = f(x) = √3/2 sin(2x) - 1/2 cos(2x) if
1. 1 answer
2. asked by richard
3. 1,033 views
A 50 dB sound wave strikes an eardrum whose area is 5.0 x 10^-5 m^2.A.)How much energy is absorbed by the eardrum per second?
1. 0 answers
2. asked by L
3. 1,031 views
i am doing a project on skateboards and how are they made, but i have to write a research paper and i need help i need somebody
1. 0 answers
2. asked by quanise
3. 1,030 views
solve using the quadratic formula2x^2 +6x-3=0
1. 0 answers
2. asked by Marie
3. 1,003 views
Assuming Alexa receives $20,000 in gross rental receipts, answer the following questions:a. What effect does the rental activity
1. 0 answers
2. asked by Ramona
3. 973 views
alculate the molar solubility of Ca(OH)2 at 50 Celsius. it is not the average of the 0 Celsius and 100 Celsius solubilities; why
1. 1 answer
2. asked by elia
3. 965 views
what statement best describes the function f(x)=2x^3+2x^2-x?
1. 2 answers
2. asked by kevin
3. 963 views
which has biggest change in freezing point among sodium chloride,calcium chloride,and sucrose
1. 1 answer
2. asked by Anonymous
3. 963 views
A two product monopolist faces the demand and cost functions as below:Q1=40-2(P1)-(P2) Q2=35-(P1)-(P2) C=(Q1)^2+2(Q2)^2+10 a)
1. 1 answer
2. asked by Anonymous
3. 961 views
How can a sociologist genuinely maintain value neutrality while studying a group that he/she finds repugnant?(for example, a
1. 0 answers
2. asked by Pham
3. 949 views
Do you mind if I open the window?1. No way! 2. Not in a million years. 3. Not at all. 4. Abosolutely not. (Ae all the answers
1. 1 answer
2. asked by rfvv
3. 949 views
I need to know if I am anywhere in solving this problem:Please tell me if this is correct. The pH of a solution: 0.20 M CH3COOH
1. 1 answer
2. asked by curtis
3. 942 views
What is the IUPAC name of the following compounds?a) ---CHO ---I CH3CCH3 ---I ---CH2CH3 b) -----------CH3 -----------I
1. 1 answer
2. asked by long
3. 883 views
The autor of the play The Rising Moon named the play after an actual song.This is an example of A)a foil B)dramitic irony C)an
1. 0 answers
2. asked by Rebecca
3. 875 views
solve this system of equation3x-y+5z-2w=-44 x+6y+4z-w=1 5x-y+z+3w=-15 4y-z-8w=58
1. 0 answers
2. asked by jenny
3. 870 views
Find the vertex of y^2 + 4y + 2x +10 = 0. Use completing the square to put the equation into standard form as your first step.
1. 2 answers
2. asked by Randy
3. 869 views
I am trying to tell the difference between trade credit and opportunity costs, but now liking what I find on the internet. Is
1. 0 answers
2. asked by Luke
3. 863 views
For what biological reason do farmers object to picking apple blossoms during the apple blossom season?
1. 0 answers
2. asked by Christina
3. 861 views
Could someone please explain this problem to me?I will show you what I have so far. Perform the indicated operations and
1. 2 answers
2. asked by B.B.
3. 860 views
(E)Essential and (NON)nonessential clausescheck if these are right. do any sentence need commas? thx 1. the explorers whom i
1. 1 answer
2. asked by Sara!
3. 845 views
A platform rotates at an angular speed of 2.2 rad/s. A block rests on this platform a distance of 0.3m from the axis. (friction
1. 1 answer
2. asked by Lola
3. 845 views
2NO2. how many grams of NO2 will be produced with 5.00 moles of NO React? what would the working out of this be?
1. 1 answer
2. asked by Sammy
3. 834 views
"In the expansion of (2-ax)^5 the coefficient of x^2 is 5. Find the value of a".I know I have to use the binomial theorem to
1. 4 answers
2. asked by Stuck
3. 831 views
Solve the inequality. The answer is suppose to be x> or equal to -8. Everytime I solve it I get O.-16x+16< or equal to -4(3x-12)
1. 1 answer
2. asked by Johnnie
3. 809 views
what part of a plant does vanilla represent
1. 0 answers
2. asked by mary
3. 807 views
Joe operates a business that locates and purchases specialized assets for clients, among other activities. Joe uses the accrual
1. 2 answers
2. asked by Ramona
3. 795 views
A spherical rubber balloon has an initial thickness of 0.45mm, and diameter 250mm. Final diameter of 1000mm.Find final
1. 0 answers
2. asked by nick
3. 794 views
I really don't know how to approach this problem and I really need help.Using the average molarity of your initial acetic acid
1. 1 answer
2. asked by Megan
3. 792 views
What is the molar solubility of CaF2 if o,1o mol of NaF are added to 1.0L of a saturated solution of CaF2? The Ksp for CaF2 is
1. 2 answers
2. asked by Mary
3. 788 views
Hello ma’am sir.. I have a problem in my assignment.. I‘m now a college student…a first year student…this is my
1. 2 answers
2. asked by Mr. J
3. 785 views
two people- one twice as heavy as the other one, play tug-of-war with a 12m ideal rope while standing on a frctionless ice
1. 1 answer
2. asked by Anonymous
3. 782 views
Compare two reactions, one requiring the simultaneous collision of three molecules and the other requiring a collision between
1. 2 answers
2. asked by Jon
3. 776 views
Given that lim x-> f(x)=6 and that lim x-> g(x)= -4, evaluate the following limit. Assume that c is a constant.lim -2f(x) - 12 /
1. 1 answer
2. asked by Randy
3. 772 views
When 20.0 mL of 0.100 M AgNO3 are mixed with 80.0 mL of 0.0100 M Na2CrO4, what is the chromate ion concentration (CrO4^2-)?Ksp
1. 1 answer
2. asked by Cory
3. 766 views
5. A teacher wishes to compare two different groups of students with respect to their mean time to complete a standardized test.
1. 1 answer
2. asked by Ima
3. 759 views
Calculate the pH of a solution prepared by mixing 25.0 mL of 0.60 M HC2H3O2 and 15.0 mL of 0.60 M NaC2H3O2?
1. 3 answers
2. asked by Julie
3. 758 views
Hi I need help with sig figs with this problem(0.6216+0.0871)/(0.0740+0.0335)
1. 2 answers
2. asked by Anonymous
3. 748 views
What's the root word for "indefatigable"?
1. 1 answer
2. asked by AL 92
3. 743 views
dimethylglyoxime is used as a reagent in qualitative analysis to precipitate the nickel(II) ion. a solution is made by
1. 1 answer
2. asked by Anonymous
3. 740 views
describe the opposing forces of attraction that are at work in the dissolution of calcium chloride. which are greater?
1. 1 answer
2. asked by Anonymous
3. 737 views
Posted by rfvv on Sunday, May 2, 2010 at 10:33pm.1. Are you finished cleaning? 2. Are you finished with cleaning? (Which one is
1. 1 answer
2. asked by rfvv
3. 735 views
A triangle has vertices A(2,3,7), B(0,-3,4) and C(5,2,-4)a.) Determine the largest angle in the triangle.
1. 0 answers
2. asked by Sarah
3. 727 views
The Official Language Movement· Resources: Racial and Ethnic Groups, the Internet, and the University Library · Investigate
1. 1 answer
2. asked by Anonymous
3. 716 views
What is the molar hydronium ion concentration in solutions with pH values of a) 3.45 and b) 10.290. How do you work these
1. 1 answer
2. asked by Melody
3. 715 views
A box contains four red marbles, seven white marbles, and five blue marbles. If two marbles are drawn one at a time, find the
1. 1 answer
2. asked by Star K
3. 710 views
Factor the GCF from each term in the expression. Can you please show me the steps on how you reached your answer? Thank you!!8m^
1. 1 answer
2. asked by Michael
3. 708 views
A 8.2 gram lead bullet that was stopped in a doorframe apparently melted completely on impact. Assuming the bullet was fired at
1. 1 answer
2. asked by H
3. 696 views
A mass 0f 10kg is suspended by 2 pieces of string, 30 cm and 40 cm long, from twp points that are 50cm apart and at the same
1. 0 answers
2. asked by Darren
3. 682 views
I have a bag of tiles 0-9. Without looking select a tile, record, return tile, select a second tile. What is the probability
1. 2 answers
2. asked by Sally
3. 680 views
Simplify the expression:1/2*(square root of 112) Ex: 90^1/2= 10^1/2 * 9^1/2 Answer: 3(10^1/2)
1. 4 answers
2. asked by Jeet
3. 671 views
1) ctgx+cosx=1+ctgx*cosx2) sin^4x+cos^4x=1/2 3) (sinx-cosx)^2=sin2x 4) sin^4x-cos^4x=7/2(sinxcosx) 5)
1. 2 answers
2. asked by LiNnda
3. 666 views
A 100kg mass starts from rest at the top of an incline plane that makes an angle of 35 degrees with the horizontal, the
1. 0 answers
2. asked by Ariel
3. 665 views
Nacl(s)+ HCl---->H20 +NaCl(aq)delta H(amouint of energy aborbed by the solution is 4263.6J) Is it okay to say that H2 represents
1. 1 answer
2. asked by Ade
3. 665 views
A 100kg mass starts from rest at the top of an incline plane that makes an angle of 35 degrees with the horizontal, the
1. 1 answer
2. asked by Ariel
3. 662 views
Sara and her sister Emily both collect charms for their charms bracelets. Together they have 42 charms. Emily has 2 more charms
1. 2 answers
2. asked by kiddo
3. 660 views
what is spiritual health?
1. 0 answers
2. asked by ronnel
3. 659 views
what looks like a rectangular prism
1. 1 answer
2. asked by miranda
3. 654 views
what happens when a population or group of living things is divided into two separate groups in two separate environments ?
1. 0 answers
2. asked by Dominique
3. 651 views
A sample of four supermarkets is to be selected from a total of eight in a small town. How many different random samples without
1. 0 answers
2. asked by Kassie
3. 650 views

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