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2011
July

Questions Asked on July 9, 2011

Consider the following reaction. CaO (s) + CO2 (g) = CaCO3 (s) A chemist allows 14.4 g of CaO and 13.8 g of CO2 to react. When
1. 3 answers
2. asked by ABCD
3. 5,231 views
I am having trouble with the last portion of this question. If someone can help me, I would sincerely appreciate it.A bicycle
1. 2 answers
2. asked by Matt
3. 5,075 views
How much energy must be absorbed by 20.0 g of water to increase its temperature from 283.0 degrees c to 303.0 degrees c
1. 2 answers
2. asked by Sade
3. 4,119 views
x+y=9.00.50x+0.20y=3.90 What is the value of x and y?
1. 1 answer
2. asked by Josh
3. 4,097 views
Sam Monte deposits $21,500 into Legal Bank which pays 6 percent interest that is compounded semiannually. By using the table in
1. 3 answers
2. asked by Anonymous
3. 3,930 views
How many grams of oxygen are in 40.1 g of calcium hydroxide?options: 17.3 g 8.64 g 20.1 g 0.541 g 11.2 g
1. 2 answers
2. asked by ABCD
3. 3,857 views
How many moles of oxygen are in 3.45 mol of diphosphorus pentoxide?options: 5.75 mol O 13.5 mol O 6.90 mol O 3.45 mol O 17.3 mol
1. 2 answers
2. asked by ABCD
3. 3,764 views
Fill in the blanks in the following separate income statements a through e. Identify any negativeamount by putting it in
1. 1 answer
2. asked by Joann
3. 2,884 views
M&M plain candies come in various colors. According to the M&M/Mars Department of Consumer Affairs, the distribution of colors
1. 3 answers
2. asked by Anonymous
3. 2,449 views
A bat flying in a cave emits a sound and receives its echo 0.1 s later. Show that its distance from the cave wall is 19m.
1. 1 answer
2. asked by Mickey Mouse
3. 2,388 views
1.The density of solid Fe is 7.87 g/cm3. What volume per atom of Fe?2.As a solid Fe adopts a body centered cubic unit cell. What
1. 1 answer
2. asked by Josh
3. 2,281 views
simplify 2log4(9)-log2(3)
1. 1 answer
2. asked by KCS
3. 2,279 views
jim and alice moore decided to plant a garden with 3 hosta plants, 6 lavender plants, 60 tulips, and a dogwood. the cost of the
1. 8 answers
2. asked by Anonymous
3. 2,270 views
18 people enter a race, if there are no ties, how many ways can 1st, 2nd and 3rd place result?
1. 1 answer
2. asked by Shay
3. 2,254 views
Determine the empirical and molecular formula for a compound made from 54.09% calcium, 2.72% hydrogen, and 43.18% oxygen with a
1. 1 answer
2. asked by ABCD
3. 2,019 views
The diameter of a circle is 7 inches. What is the circumference of the circle rounded to the nearest thousandth?
1. 4 answers
2. asked by Anonymous
3. 1,886 views
If a sample with M = 50 and s = 10, the X value corresponding to z = 1.50 is X = 65?
1. 1 answer
2. asked by Michell
3. 1,800 views
Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)If 2.00 g of Mg reacts completely with 50.0 mL of HCl solution, what is the molarity of
1. 1 answer
2. asked by Jayne
3. 1,784 views
How many molecules of oxygen are produced from the decomposition of 8.75 g of hydrogen peroxide in the following equation Mg +
1. 2 answers
2. asked by ABCD
3. 1,585 views
Given the following dissolving process: Fe2(SO4)3 (s) = 2Fe3+ (aq) + 3SO42- (aq) How many grams of iron (III) ions are produced
1. 3 answers
2. asked by ABCD
3. 1,478 views
If you drive 253 miles on 11 1/2 gallons of gas, what is the simplified ratio of miles to gallons?
1. 4 answers
2. asked by Anonymous
3. 1,375 views
Two 20.0g ice cubes at -10.0 C are placed into 275g of water at 25.0 C. Assuming no energy is transferred to or from the
1. 1 answer
2. asked by Josh
3. 1,317 views
The altitude of a triangle is increasing at a rate of 2500 centimeters/minute while the area of the triangle is increasing at a
1. 0 answers
2. asked by Laura Le
3. 1,314 views
Find the length of the arc on a circle of radius 10 ft intercepted by a central angle 276. Answer in units of ft.
1. 1 answer
2. asked by Chari'
3. 1,300 views
simplify 3^(2log3[5])
1. 3 answers
2. asked by KCS
3. 1,243 views
An entertainer juggles balls while doing other activities. In one act, she throws a ball vertically upward, and while it is in
1. 1 answer
2. asked by izzy
3. 1,188 views
When 15.0 g of steam drops in temperature from 275.0 degrees c to 250.0 degrees, how much heat energy is released
1. 1 answer
2. asked by Sade
3. 1,150 views
how same sex marriage define neo evolution theory.
1. 2 answers
2. asked by ami
3. 1,133 views
Correct 0.04945 to two significant figures
1. 2 answers
2. asked by Damilare
3. 1,130 views
What is the coefficient for aluminum after the following equation is balanced: Al(s) + O2(g) --> Al2O3(s)options: 2 4 1 3 0
1. 1 answer
2. asked by ABCD
3. 1,117 views
raise the quanity in parentheses to the indicated exponent, and simplify the resulting expression (-3x^6y)^3
1. 1 answer
2. asked by sha sha
3. 1,066 views
short answer.Simplify the following expression,and rewrite it in an equivalent form with positive exponents. (-2x^-2)^-4
1. 1 answer
2. asked by sha sha
3. 1,062 views
1. The vapor pressure, P of a certain liquid was measured at two temperatures, T. from this data:T(K) and P(kpa) 275 3.57 825
1. 2 answers
2. asked by Josh
3. 1,055 views
it takes 1 3/8 yards of material to make one shirt. how many shirts can be made from 16 1/2 yards ?
1. 3 answers
2. asked by Anonymous
3. 1,051 views
15 beats are heard in 5 seconds when a piano key and a tuning fork of slightly higher frequency (440 Hz) are struck at the same
1. 4 answers
2. asked by alicia
3. 1,007 views
solve by elimination method.5x+6y=3 10x+12y=6
1. 1 answer
2. asked by jon
3. 987 views
I don't know how to answer this question. What strategies will I use to overcome challenges of writing a paper?
1. 6 answers
2. asked by Jamie
3. 929 views
what was unusual about the landholding policy in the vancouver colony? and why would immigrants from Canada object to such a
1. 2 answers
2. asked by Cloey
3. 914 views
A ray of light is incident on a plane mirror at an angle of 40o with the mirror surface. What will be the angle of reflection?
1. 1 answer
2. asked by alicia
3. 913 views
Calculate the heat energy released when 19.6 of liquid mercury at 25.00 C is converted to solid mercury at its melting point
1. 1 answer
2. asked by Josh
3. 901 views
Two insulated charged metallic spheres A & B have their centres separated by a distance of 50cm in air. Calculate the force of
1. 1 answer
2. asked by Abdullahi
3. 876 views
If a cylindrical container has a volume of cubic feet, then its surfacearea S in square feet (excluding the top and bottom) is
1. 2 answers
2. asked by DeLynn Stewart
3. 809 views
The profit made when t units are sold, t>0, is given P=t²-36t+320. Determine the number of units to be sold in order for P>0 (a
1. 2 answers
2. asked by HELP
3. 806 views
Five sentences about the role of education in successful financial planning, using different verb tense in each sentence with
1. 8 answers
2. asked by Star
3. 770 views
At the instant the traffic light turns green, a car that has been waiting at an intersection starts ahead with a constant
1. 1 answer
2. asked by Arthur
3. 768 views
Ms. Harri's new class includes two native American children, about whose families and tribe she needs to gather more
1. 4 answers
2. asked by anonymous
3. 762 views
1.explain how the code that is found in the organism`s genes works2.describe how the genetic code controls the production of
1. 0 answers
2. asked by Ollie
3. 742 views
Write a medical report describing the history, symptoms, and physical examination findings of a patient with pancreatitis. Make
1. 5 answers
2. asked by Donnice
3. 742 views
Hi,Which correctly expresses the relationship between wavelength (L), speed (V) and perios (T) of a sinusodial wavform ? a) L =
1. 1 answer
2. asked by Fred
3. 741 views
which of the following expressions shows the equation to use in finding the dimensions of cube n by n by n by n with a volume of
1. 2 answers
2. asked by jenny
3. 722 views
Multiple ChoiceEscoge el mandato correcto para las siguientes oraciones. Nota el tono, formal o informal. 6. Chicas por favor
1. 4 answers
2. asked by Lindsey
3. 696 views
Lakes that have been acidified by acid rain can be neutralized by the addition of limestone (CaCO3). How much limestone in
1. 1 answer
2. asked by ABCD
3. 694 views
Information on the price elasticity of demand is particularly importatn to managerial decision making because:A) the higher the
1. 1 answer
2. asked by Kathy
3. 690 views
judicial review is the power of the american courts to
1. 1 answer
2. asked by sue
3. 686 views
In the story Julie of the wolves, what are two lessons that Julie learns?
1. 4 answers
2. asked by Anonymous
3. 636 views
At an initial point on the aggregate demand curve, the price level is 100, and real to GDP is $15trillion. After the price level
1. 0 answers
2. asked by Tina
3. 629 views
I do not understand set-builder notation.....Using correct mathematical notation and symbols, express the following in
1. 3 answers
2. asked by Jen
3. 628 views
Thanks for your help in English.Writeacher.I have passed my examination which is Japanese Government Scholarship
1. 2 answers
2. asked by Bayarbold
3. 623 views
I do not understand set-builder notation.....Using correct mathematical notation and symbols, express the following in
1. 2 answers
2. asked by Jen
3. 622 views
Calculate the empirical formula for the following compound: potassium tartrate found in baking powder: 20.8% K, 2.7% H, 25.5% C,
1. 1 answer
2. asked by ABCD
3. 613 views
MATCHINGEncuentra la definición apropiada para los siguientes términos del vocabulario. Choices A) dar por sentado B)
1. 4 answers
2. asked by Lindsey
3. 602 views
State whether each of the following will increase,decrease or unchange when catalyst is added to the reaction and give an
1. 1 answer
2. asked by Gift
3. 599 views
use scientific notation to divide the following two numbers. Express the answer using scientific notation; retain at least three
1. 1 answer
2. asked by swirl
3. 595 views
Explain the importance of an organized new-product development process and illustrate how it might b used for (a) a new hair
1. 0 answers
2. asked by Destiny
3. 591 views
A theater group made appearances in two countries. The hotel charges before tax in the second country were $500 lower than in
1. 1 answer
2. asked by Emily
3. 590 views
A manufacturer makes two products A and B, each of which is processed in two departments, production and finishing. Each A takes
1. 1 answer
2. asked by tina
3. 584 views
Equilibrium is defined as the price at which the quantity demanded and the quantity supplied are equal. In the short run,
1. 0 answers
2. asked by alphonso
3. 582 views
How could constructivism be used in an integrated approach to teaching science and math
1. 1 answer
2. asked by Joree
3. 578 views
I guess it was skippedOne interesting property of a Fibonacci sequence is that the ratio of the values of adjacent members of
1. 0 answers
2. asked by George
3. 569 views
Does Na2CO3 have a methatesis reaction with NaCl, NaIO3, or Al2(SO4)3. If it does which one and why.
1. 1 answer
2. asked by Mainland Community College
3. 564 views
There are two neighboring points P and Q on the curve f(x)=x^2(a) Determine m(h), the slope of the straight line PQ (b) The
1. 0 answers
2. asked by Vincent
3. 537 views
if paul pays the newspaper company 70% of what he collects, how much would he keep for himself in a month when he collected $450
1. 5 answers
2. asked by Anonymous
3. 533 views
use analytical and graphical methods to solve the inequality.x©ø+10x©÷+31 ¡ -30 (2x/x+1)¡(4/x-3)
1. 0 answers
2. asked by help
3. 524 views
Engineering EconomicsEssay 1: You wish to purchase a home for $150,000 and you can put down 10% of this price as down payment.
1. 0 answers
2. asked by Rashed Alhajri
3. 519 views
I am having a hard time trying to figure out this problem, if someone could help me...I'd appreciate it: I have to solve the
1. 2 answers
2. asked by Catherine
3. 513 views
Engineering EconomicsEssay Question: You wish to purchase a home for $150,000 and you can put down 10% of this price as down
1. 0 answers
2. asked by Rashed Alhajri
3. 509 views
help me with this question organized environments designed to support activities that meet children's educational goals and the
1. 1 answer
2. asked by red
3. 501 views
A certain substance has a heat of vaporation 56.21 kj/mol. At what kelvin temperature will the vapor pressure be 6.50 times
1. 0 answers
2. asked by Josh
3. 499 views
company A plans to purchase a packaging machine worth 5 million to further fast and up the packaging of their product brand X.
1. 0 answers
2. asked by melissa
3. 494 views
A rocket flies upward with a velocity of 1050 km/h and at an angle of 30 degrees to the vertical. If the rocket runs out of fuel
1. 2 answers
2. asked by sand
3. 486 views
use implicit differentiation to find the slope of the tangent line to the curve (y)/(x-7y)=x^6+5 at the point (1,6/43)
1. 0 answers
2. asked by Lan
3. 481 views
x/a+y/b+z/c=1, solve for a
1. 1 answer
2. asked by KCS
3. 480 views
Suppose that Congress enacts a lump-sum tax cut of $750 billion. The marginal propensity to consume is equal to .075. Assuming
1. 0 answers
2. asked by Tina
3. 479 views
Will Zn(NO3)2 react in a metathesis reaction with NACl, BACL2, NAIO3 or AL2(SO4)3
1. 0 answers
2. asked by Mainland Community College
3. 477 views
use analytical and graphical methods to solve the inequality.x^3+10x^2+31<=-30 (2x/x+1)<=(4/x-3)
1. 0 answers
2. asked by help
3. 477 views
Use analytical and graphical methods to solve the inequality.(3x+6)/(7x©÷+5)>0 m©ø-4m¡Ã0
1. 1 answer
2. asked by help
3. 475 views
Simplify the following expressions, and rewrite it in an equivalent positive exponents-14x^4y^6/7x^3y^5
1. 1 answer
2. asked by she she
3. 464 views
A 8.4 kg object oscillates on a spring with an amplitude of 57.7 cm with a maximum acceleration of 9 m/s2. Find the total
1. 0 answers
2. asked by Chari'
3. 463 views
Balancing equationNa+H2o-NaoH+H2+H2o
1. 0 answers
2. asked by Rinna Robert
3. 453 views
what is the comparison between positive and negative reinforcement?
1. 2 answers
2. asked by keisha jenkins
3. 452 views
Should American companies refuse to do business in countries?a) That do not practice democracy? b) That routinely practice
1. 2 answers
2. asked by James
3. 451 views
short answer: convert this number to scientific notation 1,800,000
1. 1 answer
2. asked by swirl
3. 448 views
give an example that demonstrates how much money you are will to spend if I want to spend no less than 6000 and no more than
1. 1 answer
2. asked by Bernadine
3. 443 views
I have to solve the following equation and check my work. Not sure how to do this if someone oculd help me out. The problem is(1
1. 1 answer
2. asked by Catherine
3. 442 views
short answer. Simplify the following expressions; express in terms of ¡ square root of -25
1. 1 answer
2. asked by sheba
3. 430 views
A bus company official wanted to estimate the mean time for the trip between two cities. A random sample of such trips gave a
1. 0 answers
2. asked by John
3. 429 views
A certain substance has a heat of vaporation 56.21 kj/mol. At what kelvin temperature will the vapor pressure be 6.50 times
1. 1 answer
2. asked by Josh
3. 423 views
This is so confusing :(Given U = {10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20}, A = {12, 14, 16, 18, 20}, and B = {11, 13, 14,
1. 1 answer
2. asked by Jen
3. 420 views
How many passwords can be made using 2 letters and 4 digits (this time the letters don’t have to come first)DDDDLL = 6760000
1. 1 answer
2. asked by Shay
3. 420 views
use analytical and graphical methods to solve the inequality.x^3+10x^2+31¡Ü-30 (2x/x+1)¡Ü(4/x-3)
1. 0 answers
2. asked by help
3. 417 views

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