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2010
April

Questions Asked on April 30, 2010

A solution of LiCl in water is 18.0 wt% LiCl. What is the mole fraction of LiCl?
1. 4 answers
2. asked by gaby
3. 7,411 views
How many mL of 18 M H2SO4 are required to react with 250 mL of 2.50 M Al(OH)3 if the products are aluminum sulfate and water?
1. 3 answers
2. asked by Anna
3. 4,714 views
if i weigh 100 lbs on earth how much would i weigh on halley's comet?
1. 4 answers
2. asked by makayla
3. 4,376 views
I really need help so please help.write the first trigonometric function in terms of the second trigonometric function. sec x;
1. 5 answers
2. asked by Theresa
3. 2,781 views
plot the point given in polar coordinates and find the corresponding rectangular coordinates for the point.(-1 , -3pi/4) I do
1. 2 answers
2. asked by Abbey(Please help)
3. 2,271 views
How many milliliters of a stock solution of 2.00 M KNO3 would you need to prepare 250 mL of 0.150 M KNO3? Please show work.
1. 1 answer
2. asked by MEGAN!!!!
3. 2,269 views
Insert your values for x, y, z, & n into KxFey(C2O4)z·nH2O and provide the correctcoefficients to balance the following
1. 5 answers
2. asked by anonymous
3. 1,908 views
A cable lifts a 1200 kg elevator at a constant velocity for a distance of 34.5 m. What is the work done by the tension in the
1. 1 answer
2. asked by Fallon
3. 1,830 views
find the area of the regions enclosed by the lines and curves.x+y^2=0 and x+3y^2=2 i know the answer is 8/3, but i don't know
1. 2 answers
2. asked by shelby
3. 1,720 views
A 0.409 kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 19.5 N/m. The
1. 7 answers
2. asked by Carden
3. 1,549 views
A 500 ml buffer solution contains .2M Acetic acid and .3M sodium acetate. Find the pH of the buffer solution after adding 20 ml
1. 1 answer
2. asked by jess
3. 1,406 views
A bullet having a velocity of 680 m/s hits a target 510 m away. If the temp. of the air was 18 degrees celsius, how long after
1. 1 answer
2. asked by Anonymous
3. 1,340 views
A fixed quantity of gas at 27°C exhibits a pressure of 729 torr and occupies a volume of 5.70 L.(a) Use Boyle's law to
1. 1 answer
2. asked by chase
3. 1,278 views
1. when sodium is combined with water, sodium hydroxide and hydrogen gas are produced. How many moles of sodium do you need to
1. 1 answer
2. asked by Kelcye
3. 1,255 views
Sirius is about 9.0 light-years from Earth.To reach the star by spaceship in 10 years (ship time), how fast must you travel? How
1. 1 answer
2. asked by Lanise
3. 1,247 views
How much work (in J) must be done to lift a stack of bricks, which has a mass of 600 kg, from the ground to a height of 15 m?Acc
1. 3 answers
2. asked by Fallon
3. 1,243 views
here are some fractions :3/9, 8/9, 7/9, 4/9, 2/9, 5/9, 6/9 If I were to put them in the order of the greatest, what order does
1. 1 answer
2. asked by Blake
3. 1,213 views
Find the solution of the exponential form in terms of logarithms2^(2x+13) = 3^(x-45)
1. 3 answers
2. asked by Andrew
3. 1,213 views
Suppose the temperature at 12:00 noon is increasing at an (instantaneous)rate of 3 degrees F. per hour. What is the rate of
1. 1 answer
2. asked by Anonymous
3. 1,197 views
A 0.0730 kg arrow is fired horizontally. The bowstring exerts an average force of 60.4 N on the arrow over a distance of 0.894
1. 1 answer
2. asked by Fallon
3. 1,154 views
This is kind of a weird question, but, I need to do a Medieval ABC book, and right now I'm at E. And I need to draw a picture
1. 2 answers
2. asked by Lea
3. 1,106 views
You are working as a summer intern for the Illinois Department of Natural Resources (DNR) and are assigned to some initial work
1. 1 answer
2. asked by jesse
3. 1,087 views
how i solve this two equations ib order to find alpha and beta2=cos(alpha)+1.341cos(beta) 2=sin(alpha)-1.341sin(beta)
1. 0 answers
2. asked by mohh
3. 1,082 views
Due to the prospect of interplanetary travel, how would you attempt to isolate and identify a bacterial infection acquired on
1. 0 answers
2. asked by Rachelle
3. 1,025 views
Define table laying and state the importance of table laying
1. 4 answers
2. asked by Dolapo
3. 990 views
You are a manager in a large, global manufacturing and services organization. You're trying to explain to your grandfather how
1. 1 answer
2. asked by tpickens1
3. 964 views
A balloon is filled to a volume of 5.0 102 mL at a temperature of 28.0°C. The balloon is then cooled at constant pressure to a
1. 3 answers
2. asked by chase
3. 938 views
Anyone else working on An overview of teaching techniques study unit???
1. 2 answers
2. asked by liana
3. 918 views
I have just started a basic class in programming and I am totally lost. Can someone help me out? I have to write pseudocodes and
1. 3 answers
2. asked by Shawn
3. 916 views
how much heat dows a 23.0g ice cube absorb as its temp increases from -17.4deg C to 0.0deg C?
1. 1 answer
2. asked by allie
3. 893 views
Hi, the question is: Write the equation of the parabola with vertex(3,-1) and x-intercepts 2 and 4.I did this: y=?(x-3)^2-1 How
1. 1 answer
2. asked by Me
3. 863 views
Does Vapor Pressure decrease as intermolecular forces increase???
1. 3 answers
2. asked by James
3. 852 views
A 61.8 kg skier coasts up a snow-covered hill that makes an angle of 26.0° with the horizontal. The initial speed of the skier
1. 1 answer
2. asked by Fallon
3. 839 views
An ideal gas is contained in a cylinder with a volume of 5.0 102 mL at a temperature of 30.°C and a pressure of 710. torr. The
1. 5 answers
2. asked by libby
3. 828 views
what it he reason a spoon gets hot when put in a bowl of hot soup?
1. 2 answers
2. asked by Chris
3. 817 views
whats the 3 major roles the microbiology laboratory (microbiologist) is involved with in the diagnosis of bacterial infections.
1. 0 answers
2. asked by Alice
3. 794 views
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by
1. 4 answers
2. asked by Carden
3. 793 views
BD is a perpendicular bisector of triangle ABC. XZ is a perpendicular bisector of triangle WXY.Triangle ABC is similar to
1. 2 answers
2. asked by Amira
3. 783 views
Hello there!I having trouble understanding the relationship between dipole moment and the heat of formation. How do these two
1. 0 answers
2. asked by John
3. 762 views
How much work (in J) is done to accelerate a car which has a mass of 3300 kg from a speed of 7 m/s to a speed of 16 m/s?
1. 2 answers
2. asked by Fallon
3. 729 views
Please help I need to solve the following question for x, where 0<x<2pi. and then write a general solution for the equation. The
1. 2 answers
2. asked by Rae
3. 699 views
Sirius is about 9.0 light-years from Earth.To reach the star by spaceship in 10 years (ship time), how fast must you travel? How
1. 0 answers
2. asked by Lanise
3. 697 views
What is the molarity of a potassium chloride solution that has a volumeof 400.0 mL and contains 85.0 g KCl? Please show work.
1. 2 answers
2. asked by MEGAN!!!!
3. 695 views
Discuss any areas related to citing sources that you find confusing or difficult to understand or apply.
1. 5 answers
2. asked by vickie
3. 688 views
by plotting the graph of parabola y=2+3x-2x^2 which 3 option are true1) the graph is the same as that of y=6+9x-6x^2 2)the
1. 1 answer
2. asked by rai
3. 687 views
At the play's end both families plan to?
1. 0 answers
2. asked by Sadie
3. 670 views
4 weeks 3 days 13 hours 21 minutes- 2 weeks 6 days 19 hours 31 minutes _______________________________________ This is a
1. 3 answers
2. asked by Mia
3. 668 views
A child who has a mass of 17 kg slides down a slide from a height of 3.3 m. If friction does a non-conservative work of -143 J,
1. 1 answer
2. asked by Fallon
3. 662 views
A sample of monatomic gas (£^ = 5/3) is expanded adiabatically from an initial temperature, volume, and pressure of 230. ¢XC,
1. 2 answers
2. asked by sarah
3. 660 views
A fixed quantity of gas at 27°C exhibits a pressure of 729 torr and occupies a volume of 5.70 L.(a) Use Boyle's law to
1. 1 answer
2. asked by chase
3. 654 views
An ideal gas is contained in a cylinder with a volume of 5.0 102 mL at a temperature of 30.°C and a pressure of 710. torr. The
1. 1 answer
2. asked by libby
3. 653 views
if a muscle cell receives a second stimulus while it is contracting will it respond to the second stimulus.explain
1. 1 answer
2. asked by luhgio
3. 652 views
What do confidence intervals represent? What is the most controllable method of increasing the precision of or narrowing the
1. 2 answers
2. asked by Amy
3. 652 views
A person pulls a toboggan for a distance of 37.2 m along the snow with a rope directed 25.4° above the snow. The tension in the
1. 1 answer
2. asked by Fallon
3. 626 views
What is the molal concentration of an aqueous calcium chloride solution that freezes at -2.43 degrees Celsius?
1. 2 answers
2. asked by Brooke
3. 616 views
For the cell: C(s) C+(aq) B+(aq) B(s).Metal ______ is the "negative" electrode. is it C(s)
1. 3 answers
2. asked by eng
3. 610 views
What are good forensic questions i can ask a detective?name a couple please :)
1. 5 answers
2. asked by Angel
3. 598 views
Why is the population shape a concern when estimating a mean? What effect does sample size, n, have on the estimate of the mean?
1. 2 answers
2. asked by Amy
3. 594 views
write a polynomial for the length of the rectangle: area is- 7xto the 4th power minus 14x. the width is 7x.
1. 1 answer
2. asked by Jim
3. 589 views
Assume that the life expectancy of U.S. males is normally distributed with a mean of 80 years and a standard deviation of 4
1. 3 answers
2. asked by Brittney
3. 582 views
Thank you for your help!I just had a question.. is BaO barium oxide a precipitate? or if I combine MgO with Ba(NO3), will I get
1. 1 answer
2. asked by Kiki
3. 580 views
two angles of a triangle are 68* and 86*. what is the measurement of the third angle
1. 2 answers
2. asked by Ricky
3. 579 views
A pollster conducts a survey of a random sample of voters in a community to estimate the proportion who support a measure on
1. 1 answer
2. asked by Jabaar
3. 578 views
A shaft which rotates at 300r/min is uniformly accelerated to 600r/min in 15secs.Calculate:(a) The angular acceleration. (b) The
1. 1 answer
2. asked by Ishola
3. 571 views
Logical fallacies tend to be ____________________.nonexistent in visual arguments more common in verbal arguments than in visual
1. 2 answers
2. asked by Christopher
3. 561 views
What is the wavelength of a 1400 kg truck traveling at a rate of 72 km/h?
1. 4 answers
2. asked by tt
3. 559 views
Consider the phrases “A belief in equal rights has often led to the belief in equality of opportunity;” and “American
1. 3 answers
2. asked by laurie
3. 559 views
How are Polynomials factored by grouping? Explain and give example.
1. 1 answer
2. asked by Lynn
3. 556 views
I'm stuck...that is i believe I've come to an impossible answer:I need to calculate the equilibrium constant 4Fe(s) + 3O2(g) -->
1. 0 answers
2. asked by Rico
3. 554 views
Can you help me with the following: Calculate the pH that results when 25 mL of .1M HCL is titrated with .1M NaOH solution run
1. 2 answers
2. asked by Cathy
3. 526 views
(telephone call)Hello. May I speak to Tony? 1. - Who's calling, please? 2. - Who's speaking, please? (Which one do we have to
1. 1 answer
2. asked by rfvv
3. 524 views
1. I'd love to introcuce them to you.2. I'd love to introduce to you them. 3. I'd love to introduce the people to you. 4. I'd
1. 1 answer
2. asked by rfvv
3. 522 views
still working on this and need additional helptwo houses are for sale on the same street. the second house has 1000 square feet
1. 1 answer
2. asked by DEBBIE
3. 511 views
Bayside insurance offers two health plans. Under plan a, Giselle would have to pay the first $200.00 or hre medical bills, plus
1. 1 answer
2. asked by Mary
3. 511 views
From the Standard Potential Table in your general chemistry textbook: Which reaction has been chosen as the 'standard' against
1. 4 answers
2. asked by eng
3. 508 views
1. The demand for a new drug is given by P = 4 – 0.5Q. The marginal cost of manufacturing the drug is constant and equal to $1
1. 0 answers
2. asked by Anonymous
3. 505 views
What is the molarity of a solution that contains 0.30 moles of KBr in 400 mL of solution. Please show all work
1. 2 answers
2. asked by MEGAN!!!!
3. 500 views
Write a 350-700 word response providing an overview of and describing each court level and its responsibilities. Next: Describe
1. 1 answer
2. asked by Anonymous
3. 499 views
22. State the domain of the function y=3x+2a. D: Real numbers b. D: x not equal to 0 c. D: x < 0 A? 23. State the range of the
1. 1 answer
2. asked by y912f
3. 498 views
I need help on this.What does the term red tape mean, and how does it relate to the federal bureaucracy? To what extent is
1. 1 answer
2. asked by Greg
3. 496 views
The public transport system is aware that one person in twenty does not buy a ticket for their trip. The manager decides to
1. 1 answer
2. asked by Anonymous
3. 494 views
why when carbon dioxide increases it makes the blood more acidic
1. 2 answers
2. asked by Anonymous
3. 493 views
true or false: The cosmological redshift is a direct measure of the expansion of the universe, thus independent of direction
1. 1 answer
2. asked by laura
3. 482 views
-Which describes the compositions of 3 reflections in three distinct lines, two of which are parallel?1. rotation 2. dilation 3.
1. 1 answer
2. asked by Emmeline
3. 474 views
news reports of last 2 years of changes in the us of policies with muslims and arabic members
1. 1 answer
2. asked by hunter
3. 472 views
200-300 word descrption of an business scenario
1. 1 answer
2. asked by business
3. 472 views
A client tries on a skirt you check the side seams they curve toward the back what does this indicate?
1. 1 answer
2. asked by karessa
3. 470 views
What is the spontaneous disintegration in which two particles and/or electromagnetic radiation are emitted?would it be
1. 1 answer
2. asked by Julie
3. 467 views
I know that benzaldehyde decomposes into benzoic acid and benzyl alcohol via Cannizzaro Reaction..But, can benzyl alcohol go
1. 0 answers
2. asked by Sarah
3. 467 views
how would you attempt to isolate and identify a bacterial infection acquired on another planet?
1. 0 answers
2. asked by Rachelle
3. 466 views
30% of the people in kenya suffer from malnutrition because they grow WHAT and WHAT?
1. 1 answer
2. asked by stewie
3. 465 views
How is the kinetic-molecular theory related to specific heat, joules, and calories??
1. 0 answers
2. asked by Jose
3. 461 views
An electron travels at a speed of 0.700c. What is its kinetic and total energy? I got, but this is not right.K , E
1. 1 answer
2. asked by Lanise
3. 460 views
When an automobile moves over a wide, closed loop of wire embedded in a roadsurface, the magnetic field of the Earth within the
1. 1 answer
2. asked by elizabeth
3. 460 views
how do I differentiate y=2sin8(x+(pi/4))-12?
1. 1 answer
2. asked by Belle
3. 459 views
How will thinking critically influence the way I process information?
1. 1 answer
2. asked by Sarah
3. 458 views
do I write a program to Create a C++ console application that uses cout to display a box of asterisks?
1. 1 answer
2. asked by Micheal
3. 455 views
I'm stuck...that is i believe I've come to an impossible answer:I need to calculate the equilibrium constant 4Fe(s) + 3O2(g) -->
1. 0 answers
2. asked by Rico
3. 454 views
Starting from rest, a ball of mass 4 kg experiences a constant force of 8 N. What is the final kinetic energy (in J) of the ball
1. 1 answer
2. asked by Fallon
3. 452 views
I need to graph the polar equation3 + 3cosQ and i need to create a table of values for r and Q. Could someone please explain how
1. 1 answer
2. asked by Abbey(Please help)
3. 446 views

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