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2010
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July 24, 2010
How do you know if these solutions are acidic, basic, or nearly neutral?
a. NH4NO2 b. Cr(NO3)3
2 answers
asked by
Jin
6,554 views
What volume of 4.50M HCl can be made by mixing 5.65M HCl with 250 mL of 3.55M HCl?
2 answers
asked by
casey
5,482 views
What is the formula mass of ammonium phosphide, (NHsubscript4)subscript3P?
85.0 u 49.0 u 48.0 u 57.0 u I thought I was to look
1 answer
asked by
Sam
3,538 views
The standard heat of formation of solid ammonium nitrate. NH4NO3 is -330kJ/mol. The equation that represents this process is:
a)
2 answers
asked by
Bobby
3,349 views
Let x be a random variable representing dividend yield of Australian bank stocks. We may assume that x has a normal distribution
2 answers
asked by
Clay
3,205 views
Which of the following would involve the largest production of heat per mole?
a)the burning of gasoline b)the evaporation of
1 answer
asked by
Christian
2,853 views
A resistance box has the following components and tolerances:
10 resistors each of 100k§Ù ¡¾ 0.05% 10 resistors each of
1 answer
asked by
ong
2,752 views
A 0.20 kg ice cube at 0.0° C has sufficient heat added to it to cause total melting, and the resulting water is heated
1 answer
asked by
kristin
2,441 views
Listerine mouthwash has 21.6% ethyl alcohol by volume. What mass of ethanol is contained in 20.0 mL of mouthwash ?! ( the
2 answers
asked by
Nicole
2,352 views
4Al + 3O2 ---> 2Al2O3
How many moles of Al2O3 are produced when 4.33 moles of Al are reacted?
2 answers
asked by
jae
1,860 views
you plan an experiment to test the growth of beans using three different fertilizer. What are the dependent and independent
1 answer
asked by
Diane
1,722 views
Ngata Corp. issued 12-year bonds 2 years ago at a coupon rate of 8.4 percent. The bonds make semiannual payments. If these bonds
1 answer
asked by
Christina
1,451 views
Bond X is a premium bond making annual payments. The bond pays an 8 percent coupon, has a YTM of 6 percent, and has 13 years to
0 answers
asked by
Anna
1,376 views
An aluminum rod is 10.0 cm long and a steel rod is 80.0 cm long when both rods are at a temperature of15 degrees cel. Both rods
0 answers
asked by
Paul
1,342 views
Use elimination to solve the the system of equations given by 10x-4y=-20
and 10x-5y=35. I can't figure this one out. Whenever I
3 answers
asked by
Lily
1,281 views
Is "sharpening a pencil" more of a physical change than souring of milk, fermenting of grape juice or rusting of iron?
Thanks
3 answers
asked by
Kris
1,258 views
Determine the roots of the function f(x)=-2cos(3x)-1. Can you please show all the work so it is easier to understand, thank
4 answers
asked by
Nada
1,254 views
True or False?
1) Do Nuclear changes generally absorb more energy than chemical changes. 2) In Exothermic reactions, the
0 answers
asked by
Christian
1,239 views
Compare and contrast Populism and Progressivism. From what distinct groups of society did the two groups emerge? What was at the
3 answers
asked by
Heather
1,186 views
a) Determine the equation of a sine function that would have a range of {y€R|-7<(or equal) Y <(or equal) 1} and a period of
2 answers
asked by
Nada
1,134 views
The values of Ksp for AgBr and AgCl, are 7.7x10^-13 and 1.6 x 10^-10. A solution containing a mixture of 2.0x10^-2 M Br and 2.0
1 answer
asked by
Jin
1,081 views
the base of a triangle is 5cm greater than the height. The area is 33cm^2. What is the height and the length of the base?
1 answer
asked by
Armelia
1,073 views
4Al + 3O2 ---> 2Al2O3
When 1.75 moles of Al are reacted, how many grams of Al2O3 are also reacted?
1 answer
asked by
jae
1,067 views
Both Bond Sam and Bond Dave have 9 percent coupons, make semiannual payments, and are priced at par value. Bond Sam has 3 years
1 answer
asked by
Tom
1,066 views
Let z be a random variable with a standard normal distribution, P(-1.9<=z<=2.1)
1 answer
asked by
Clay
970 views
I had this on a test, not sure how to do it
Explain, using balanced chemical reactions with the smallest integer coefficients,
1 answer
asked by
Jin
961 views
What is Delta H degrees for the gas-phase reaction below?
CH4+ CL3 = CH3CL+ HCL Bond dissociation energies of CL-CL, C-CL, H-CL,
1 answer
asked by
Christian
946 views
Fine Breads Inc. paid out $26,000 common dividends during 2005, and it ended the year with $150,000 of retained earnings. The
1 answer
asked by
tricica
897 views
Discuss the issues facing African-Americans from the 1870s to the Great De pression. Be certain to discuss demographic factors
5 answers
asked by
Heather
866 views
In a certian lottery, 4 differnt numbers between 1 and 11 inclusive are drawn. These are the winning numbers. A player selects 4
1 answer
asked by
Jaime
861 views
This branch of psychology is primarily concerned with what can be readily seen
and recorded: (Points : 1) Cognitive psychology
5 answers
asked by
Sapna
762 views
A resistance in a circuit is 470§Ù ¡¾ 10%. When a meter with a full-scale voltage of 25V and error of ¡¾ 3% is used to
0 answers
asked by
ong
728 views
the following names are incorrect,draw their structures and supply the correct name.(a)2-isopropylpentane
2 answers
asked by
kabelo
725 views
Can someone help with com 220 wk6 day 6-subject-Global warming: Write a 350 word paragraph that uses one of your arguments and
4 answers
asked by
jay 2
724 views
Difference between Atomic spectrum and emission spectrum. First give me the clear cut definition of both and then the
10 answers
asked by
Akashdeep Singh
704 views
A solution is made by dissolving 10.9 g of calcium chloride, CaCl2,in enough water to make exactly 500 mL of solution. What is
1 answer
asked by
Shelia
702 views
For some reason I can not get my head around probability. Please show me how to work the problem not just the answers.
A class
3 answers
asked by
Jaime
677 views
A 0.1 M solution of acetic acid is titrated with 0.05M solution of NaOH. What is the pH when 60% of the acid has been
1 answer
asked by
eric
674 views
Select a company and country that interests you.
You have been asked to evaluate the country you selected as a potential market
1 answer
asked by
mee
668 views
What point is a solution to the system of inequalities y(inequality arrow pointing right)4x and y(inequality arrow pointing
2 answers
asked by
Lily
666 views
Pick a company that pays dividends, then calculate the expected growth rate of your company using the CAPM.
Once this task is
1 answer
asked by
Sam
654 views
The molar enthalpies of combustion of CH3COCOOH(l)CH3COOH(l) and CO(g) are respectively -1275kJ/mol, -875kJ/mol, and -283kJ/mol.
1 answer
asked by
Bobby
644 views
Height difference. A red ball and a green ball are
simultaneously tossed into the air. The red ball is given an initial velocity
0 answers
asked by
joyce
616 views
On average, how far is a molecule of air in the room in which you're sitting from the nearest molecule of air to it, assuming it
1 answer
asked by
eric
616 views
I have a problem that I'm wondering is a "trick" question.
How many nucleons are there in an atom of 235 (atomic mass) over 92
1 answer
asked by
Jean
597 views
7.50gram quantity of a diprotic acid was dissolved in water and made up to exactly 250ml. If 25ml of this solution were
3 answers
asked by
Jin
582 views
What is the measure of the point angle for a star-shaped polygon with 8 points and a dent angle of 130 degrees?
Is there a
0 answers
asked by
Jaime
580 views
Cooper Inc's latest EPS was $4.00, its book value per share was $20.00, it had 200,000 shares outstanding, and its debt ratio
0 answers
asked by
tricica
576 views
which is a valid generalization based on the information in the chart
1 answer
asked by
kevin
568 views
We flush our HPLC column with methanol followed by filtered deionised water and finally with mobile phase(ammonium acetate +
1 answer
asked by
Minnie
555 views
plz check this.
1. In preparing a budget for a day care center, you must plan for taxes. As an employer, you must pay part of
1 answer
asked by
Tina
553 views
I need to create a multiculture lesson plan, I was thinking that I would try and do one during the christmas season with
1 answer
asked by
Sally
551 views
I am to describe how the differences (of human history in North America during the 8000bc era and the asia euriasia and europe
3 answers
asked by
Kali
543 views
lnx+ln(x+1)=ln12
Find all real-roots
1 answer
asked by
Kris
538 views
how does geography affect the economy of Asian countreis???????? and give any picture of that which will support my eassy
1 answer
asked by
sandeep
538 views
Write a 200-300 word description of the four time value of money concepts: present value, present value of an annuity, future
0 answers
asked by
Chris
537 views
If I want to live in the state of California in the future, there is one concern that I have.
Since most of California's major
1 answer
asked by
AL 92
530 views
I would really appreciate help with the following, as I don't understand how to work it. Thank you in advance for explaining it
3 answers
asked by
Jean
526 views
what product will form from dehydration of 2-methylcyclohexanol?
2 answers
asked by
dede
525 views
The four elements of weather are:
1 answer
asked by
Diane
522 views
Selling shirts. If a vendor charges p dollars each for
rugby shirts, then he expects to sell 2000 � 100p shirts at a tournament
0 answers
asked by
bobbi
522 views
-6q^2 -40q - 50 how do you solve this i am factoring and having problems
2 answers
asked by
joyce
520 views
Let triangle ABC be a triangle such that angle ACB is 135 degrees.
Prove that AB^2 = AC^2 + BC^2 - (Root 2) x AC x BC
0 answers
asked by
eric
503 views
are food science and technology too broaad for a research?im going to talk about their differences
5 answers
asked by
anonymous
500 views
Factorise:
a^4 + b^4 + c^4 - 2 (a^2 x b^2 + a^2 x c + b^2 x c)
0 answers
asked by
eric
492 views
Ok so I kind of forgot how to do this so I looked up on the internet and was told divide the coefficent in the numerator of the
1 answer
asked by
Kate
483 views
Selling shirts. If a vendor charges p dollars each for
rugby shirts, then he expects to sell 2000 � 100p shirts at a tournament.
0 answers
asked by
joyce
481 views
* What is the difference between lobbying and bribery?
* What argument could the SLOC members make that the payments made do not
2 answers
asked by
Shay
479 views
I'm stuck on this problem please help me
find the range of this equation y = (x^2 - 4)/(x^2 - x - 12) I know that it is
0 answers
asked by
Kate
477 views
In what timeframe do you see things changing in pharmacy practice and how will those changes impact society. this is part of my
2 answers
asked by
Nancyg
477 views
Let triangle ABC be a triangle such that angle ACB is 135 degrees.
Prove that AB^2 = AC^2 + BC^2 - (Root 2) x AC x BC
0 answers
asked by
eric
477 views
h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 9 9 0 5 6 1 4
well it's on this page just CTRL+F
7 answers
asked by
Kate
471 views
The sales tax rate in a state is 8%. If you pay a tax of $2.50 on an item purchased, what is the selling price?
Plaese identify
1 answer
asked by
barb
458 views
in the ques they got a square
divided in 2 each block has the number 4 in it and there r 4 block thats the 1st ques. the other 1
1 answer
asked by
neill
453 views
How come no one is answering any of the Finance questions?
1 answer
asked by
tricica
448 views
y = (x^2 -4)/(x^2 - x -12)
dy/dx of numerator I got 2x dy/dx of denomenator I got 2x - 1 dy/dx of y I got (x^2 - 16x
1 answer
asked by
Kate
441 views
Complete the ordered-pair solutions for the following equation.
x/3 + y = 15 S = {(0, ), (3, ), (6, )
1 answer
asked by
april
440 views
Yes I was trying to find the range
y = (x^2 -4)/(x^2 - x -12) ok using 2(4 +/- sqrt(15) ) sorry I forgot the minus in the
1 answer
asked by
Kate
437 views
2independant alternators. probabalitity one will fail in a 1 hour flight is .02 what is the probablility both will
1 answer
asked by
Peg
428 views
i have two questions 1)7,000,000 picoseconds how many microseconds 2) determine how far electricty travels in 7 microseconds.
3 answers
asked by
Anonymous
427 views
how many grams of water will react with 600.0 grams of carbon dioxide?
1 answer
asked by
Anonymous
412 views
determine whether 9 is the solution of the equation 7(x-2)=50
2 answers
asked by
Norma
401 views
A sample of gas has a volume of 5.3 L at 7.00 ºC. What volume will the gas have if the temperature is
increased to 14.00 ºC? (6
1 answer
asked by
Anonymous
400 views
In the book Stange Objects written by Gary Crew what is the description of Chsrlie Sunrise? What does he look like? Who is he?
0 answers
asked by
Gabbey
393 views
Simplify:
2/1! - 3/2! + 4/3! - 5/4! + ..... + 2010/2009! - 2011/2010! Where k! is the multiplication of all numbers up to k (e.g.
1 answer
asked by
eric
392 views
Can a car climb over ramp of slope of 1m vertical to 2.4m horizondal
0 answers
asked by
sonu
366 views
-4/5 + (-3/4) how do I work this? Will the answer be positive or negative? Please help me!!!!!
1 answer
asked by
barb
358 views
ABC
x C ____ 16BC _____ What could the value of C be?
1 answer
asked by
Jasmine
346 views
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