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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. 7,444 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. 4,734 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. 4,402 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. 2,799 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. 2,291 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. 2,286 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. 1,939 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. 1,851 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. 1,734 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. 1,572 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. 1,422 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. 1,353 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. 1,295 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. 1,271 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. 1,267 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. 1,258 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. 1,227 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. 1,225 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. 1,225 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. 1,166 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. 1,124 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. 1,094 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. 1,094 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. 1,035 views
Define table laying and state the importance of table laying
1. 4 answers
2. asked by Dolapo
3. 1,007 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. 973 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. 952 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. 948 views
Anyone else working on An overview of teaching techniques study unit???
1. 2 answers
2. asked by liana
3. 929 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. 907 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. 881 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. 865 views
Does Vapor Pressure decrease as intermolecular forces increase???
1. 3 answers
2. asked by James
3. 864 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. 841 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. 827 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. 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. 804 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. 799 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. 781 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. 742 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. 722 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. 709 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. 702 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. 702 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. 702 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. 682 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. 680 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. 680 views
At the play's end both families plan to?
1. 0 answers
2. asked by Sadie
3. 679 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. 677 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. 671 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. 664 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. 664 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. 639 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. 626 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. 621 views
What are good forensic questions i can ask a detective?name a couple please :)
1. 5 answers
2. asked by Angel
3. 612 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. 612 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. 606 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. 602 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. 595 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. 593 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. 591 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. 580 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. 578 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. 578 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. 569 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. 565 views
How are Polynomials factored by grouping? Explain and give example.
1. 1 answer
2. asked by Lynn
3. 564 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. 550 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. 544 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. 539 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. 523 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. 523 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. 520 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. 520 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. 520 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. 518 views
why when carbon dioxide increases it makes the blood more acidic
1. 2 answers
2. asked by Anonymous
3. 513 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. 513 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. 510 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. 509 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. 493 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. 492 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. 491 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. 488 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. 487 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. 484 views
200-300 word descrption of an business scenario
1. 1 answer
2. asked by business
3. 483 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. 482 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. 479 views
how would you attempt to isolate and identify a bacterial infection acquired on another planet?
1. 0 answers
2. asked by Rachelle
3. 475 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. 475 views
30% of the people in kenya suffer from malnutrition because they grow WHAT and WHAT?
1. 1 answer
2. asked by stewie
3. 474 views
How is the kinetic-molecular theory related to specific heat, joules, and calories??
1. 0 answers
2. asked by Jose
3. 473 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. 472 views
How will thinking critically influence the way I process information?
1. 1 answer
2. asked by Sarah
3. 468 views
not really homework but just not getting answers to all my questions so in short.If an individual suffering from Alzheimer's
1. 2 answers
2. asked by april
3. 468 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. 465 views
The vector x and y are the lenght of 3units(they both have a magnitude of 3). If the magnitude of( vectorx + vector y)= root 17,
1. 1 answer
2. asked by John
3. 465 views

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