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Questions Asked on March 7, 2010

Can zinc (Zn) react with one of these:Al(NO3)3 aluminum nitrate Mg(NO3)2 magnesium nitrate Zn(NO3)2 zinc nitrate Cu(NO3)2 copper
1. 3 answers
2. asked by Ana
3. 4,464 views
I have a bar graph that shows the number of students by major in the College of Arts and Science.Math shows 200 students History
1. 2 answers
2. asked by Carrie
3. 4,383 views
A spinner has regions numbered 1 through 21. What is the probability that the spinner will stop on an even number or a multiple
1. 3 answers
2. asked by Carrie
3. 3,744 views
Which of the following mixtures will result in the formation of a buffer solution when dissolved in 1.00 L of water?i) 0.50 mol
1. 3 answers
2. asked by Daniel
3. 3,098 views
Determine the [H3O+] of a 0.160M solution of benzoic acid.
1. 2 answers
2. asked by Katie
3. 2,793 views
Find the exact value of cos 8 degrees cos 38 degrees + sin 8 degrees sin 38 degrees
1. 1 answer
2. asked by Sandy
3. 2,596 views
I wrote my question wrong. It should be write 25000000 in expanded notation using the power of 10
1. 4 answers
2. asked by matthew
3. 2,554 views
Light from a sodium lamp ( wavelength= 589 nm) illuminates a narrow slit and is observed on a screen 75 cm behind the slit. The
1. 2 answers
2. asked by EM
3. 2,366 views
write an equation and solve A rectanglar swimming pool has width of 25 feet and an area of 1250 square feet. What is the pool's
1. 2 answers
2. asked by jeri
3. 2,240 views
C6H6 freezes at 5.5°C. At what temperature will a solution of 10 g of C4h10 in 200g of C6H6 freeze? The molal freezing point
1. 1 answer
2. asked by iain
3. 2,230 views
A solution is prepared by adding 50 mL of .050 M HCL to 150 mL of .10 M HNO3. Calculate the concentrations. I know I need to
1. 2 answers
2. asked by Dannie
3. 2,203 views
Is this true or false?:A buffer can be destroyed by adding too much strong acid.I thought that a buffer can be destroyed by
1. 2 answers
2. asked by Kiki
3. 2,156 views
A rope is used to pull a 3.57 kg block at constant speed 5.10 m along a horizontal floor. The force on the block from the rope
1. 1 answer
2. asked by help!
3. 2,149 views
21. A heat engine operates in a cycle between temperatures 700 K and 400 K. The heat input to the engine during each cycle is
1. 2 answers
2. asked by Kate
3. 2,093 views
I have to convert the following pressures into torr:1. 2.48x10^-3atm 2. 4.75x10^6atm 3. 7.60x10^6 i have no idea how to convert
1. 2 answers
2. asked by bb
3. 2,070 views
In an experiment, a student mixes equal volumes of 0.0020M Pb 2+ ions with 0.0040M I- ions. The trial ion product is?PbI2 <-> Pb
1. 4 answers
2. asked by sh
3. 2,025 views
can someone check my french essay on pocket money and improve where possible very much appreciatedJe recois dix livres d'argent
1. 2 answers
2. asked by craig
3. 1,979 views
In parallelogram PQRS, diagonals PR and QS intrsect at M. Which is always true?(1) PR is perpendicular to QS (2) PM is congruent
1. 4 answers
2. asked by Sarah
3. 1,905 views
When powdered milk is added to water, is it a coarse suspension, true solution, or colliodal dispersion? What about baking soda
1. 2 answers
2. asked by KATIE
3. 1,690 views
a chemist reacts 8.85g or iron with an excess oh hydrogen chloride to form hydrogen gas and iron(II)chloride.calculate the
1. 1 answer
2. asked by sammy
3. 1,607 views
How many grams of CuSO4 .5H2O are needed to prepare 50 ml of 0.30M CuSO4 solution
1. 1 answer
2. asked by kesiha
3. 1,526 views
In Millikan's experiment, the charge on each drop of oil was measured in coulombs. Imagine the same experiment, but with charges
1. 3 answers
2. asked by Syeda
3. 1,388 views
The weekly rental cost of a 20 foor recreational vehicle is $129.50 plus $0.15 per mile.-Find a linear function that express the
1. 1 answer
2. asked by Rony
3. 1,366 views
Question 1Solve using the multiplication principle then graph. -15>-75 Question 2 Translate to an equality. Use the variable x.
1. 1 answer
2. asked by Queen D
3. 1,343 views
In the early 1900s, Robert Millikan used small charged droplets of oil, suspended in an electric field, to make the first
1. 1 answer
2. asked by JOTHEY
3. 1,334 views
Find the four-digit number described by these three clues.1) The first digit is one-third of the third digit. 2) The fourth
1. 1 answer
2. asked by Joe
3. 1,312 views
The structure of a two-factor study can be presented as a matrix with the level of one factor determining the rows and the
1. 1 answer
2. asked by kd
3. 1,266 views
An electric field exerts a force of 3.00 E-4 N on a positive test charge of 7.20 E-4 C. The magnitude of the field at the
1. 1 answer
2. asked by Jack
3. 1,265 views
What is the pH of the following solutions?1)a solution that is 5.4×10−2 M in HClO4 and 3.0×10−2 M in HCl 2)a solution that
1. 4 answers
2. asked by Katie
3. 1,244 views
Punctuate the following sentence and underline the explanatory words. There are 13 mistakes.misty could you walk ms millers dog
1. 10 answers
2. asked by Taylor
3. 1,228 views
I am requuired to plot a graph given the linear function:F:x maps onto 2x + 1/2 using the domain 3 is less than o equal to x,
1. 0 answers
2. asked by Shequana
3. 1,226 views
A virus that infects an application program is known as a _________.a) boot sector virus b) macro virus c) Trojan horse d) file
1. 0 answers
2. asked by Jean
3. 1,221 views
a researcher reports an F-ratio with df=3,36 from an idependent-measure research study.a-how many treatment condition were
1. 3 answers
2. asked by kd lewis
3. 1,207 views
Does anyone know whether the book "The Alchemist" by Paulo Coelho have a deeper meaning that "Listening to your heart and
1. 3 answers
2. asked by Gaveen
3. 1,205 views
What will be the [Cl-] when equal volumes of 0.10MNaCl and 0.20MAlCl3 are combined?A. 0.35M B. 0.15M C. 0.30M D. 0.70M
1. 2 answers
2. asked by sh
3. 1,199 views
A 9600 kg boxcar traveling at 15 m/s strikes a stationary second car. The two stick together and move off with a speed of 7.0
1. 4 answers
2. asked by Anonymous
3. 1,159 views
I have to record observations for every main character on "The Simpsons", like the satirical characteristics, then I have to
1. 4 answers
2. asked by AL 87
3. 1,157 views
how did the involvement of the u.s in the politics of southeast asia,korea, and vietnam impact the u.s political climate of the
1. 5 answers
2. asked by sam
3. 1,150 views
calculate the molecular weight of a substance which freezes forms a 7.00% by mass solution in water which freezes at -0.89°C.
1. 1 answer
2. asked by iain
3. 1,108 views
I need help with properties of a TRAPEZOID, please!-Are opposite sides congruent AND parallel? -Are opposite angles congruent?
1. 1 answer
2. asked by Jenn
3. 1,100 views
find the coordinates of the points whose images under the translation (x,y)-->(x-3,y+4) are the followings: a. (0,0), b. (-3,4),
1. 1 answer
2. asked by nickey
3. 1,090 views
New England factories were initially located in the countryside because?Why
1. 1 answer
2. asked by Lauren
3. 1,075 views
Can you create a java program that will make a CPU SCHEDULER w/ First Come First Serve,Round Robin,Priority
1. 1 answer
2. asked by Ling
3. 1,061 views
is it possible to convertBritish thermal unit/ pound*Rankine to pound force*ft/pound mass Fahrenheit? if so, what is the
1. 0 answers
2. asked by ttn
3. 1,054 views
Hello. I o not know whether this question is to do with English or Ict.What are the media terms? Bu he way i have trie to
1. 1 answer
2. asked by Ruth
3. 1,046 views
Teaching was INNATE to Mrs.Jones as both her parents had been A)CRUEL B)TEACHERS C)STUDENTS D)DULL
1. 5 answers
2. asked by terrie
3. 1,046 views
Hello,I'm trying to figure out how to do this problem, but don't know where to begin. I think some information is missing. Blood
1. 0 answers
2. asked by Phillip
3. 1,039 views
A small startup software developer company needs to create a program that will calculate the pay of its employees. For the first
1. 3 answers
2. asked by Wayne
3. 1,028 views
Question: The total yearly food bill for a family of four is $8589.88. To the nearest cent, what is the mean weekly food bill?Wo
1. 2 answers
2. asked by Carrie
3. 1,002 views
Judaism and Islam shere the belief that ________?
1. 1 answer
2. asked by Lauren
3. 995 views
How do I find the Mean, Median and Mode from a frequency table?
1. 1 answer
2. asked by MJ
3. 990 views
Find a polynomial with integer coefficients such that (sqrt3 + sqrt5) is a root of the polynomial
1. 1 answer
2. asked by nancy
3. 962 views
Calculate [H30+] in a solution that is 0.0525M HCl and 0.768M NaC2H3O2. Ka(HC2H3O2)= 1.8 x10^-5.the way i did it is that i used
1. 2 answers
2. asked by Rav
3. 957 views
NEED HELP ASAP PLEASE!!A high sound level of 120 dB is regarded as the threshold of pain for the average listener. If the
1. 3 answers
2. asked by jh
3. 954 views
i really don't understand these sentences.... the instructions are to edit the following sentences to eliminate problems with s
1. 14 answers
2. asked by tash
3. 942 views
Dr. J. wants to buy a Dell computer which will cost $2,788 four years from today. He would like to set aside an equal amount at
1. 1 answer
2. asked by Ritta
3. 926 views
If a pinch of flour is placed in water, does it form a coarse suspension, colloidal dispersion, or true solution? What about
1. 2 answers
2. asked by KATIE
3. 926 views
who won the war of 1812? Support your ANSWER!
1. 2 answers
2. asked by Dellaine
3. 915 views
What is the value of theta if 9 cos^2 theta + 3 cos theta = 0 where 90 degrees < theta < 180 degrees?
1. 0 answers
2. asked by Ray
3. 901 views
it cost $2 per day to place a one-line ad in the classifieds plus a flat service fee. one day cost $3 and four days cost $9.writ
1. 1 answer
2. asked by Amy
3. 893 views
if the line y=2x+b and the parabola y^2=8(x+2) meet exactly at one point,then what is the value of b
1. 1 answer
2. asked by EYOB
3. 889 views
how would you say 'it's a market town'?
1. 2 answers
2. asked by James
3. 877 views
There are two conducting spheres of different sizes, both with the same negative charge. If they are connected with a conducting
1. 2 answers
2. asked by Joe
3. 872 views
How does Walt Whitman's poem "I Hear America Singing" relate and differ from Langston Hughes's poem "I,Too."PS: I need enough
1. 1 answer
2. asked by Troy
3. 865 views
I need to SHOW DON'T TELL for my essay but need help showing Mischievous, Please Help
1. 1 answer
2. asked by stephanie
3. 833 views
Can someone help me check these sentences,please? Thank you in advance.1)His fingers produced a music similar to (can I use
1. 1 answer
2. asked by Franco
3. 828 views
Camphor, C16H16O which has a freezing point of 174°C, has a freezing point depression constant of 40.0°C/m. Explain the
1. 1 answer
2. asked by iain
3. 826 views
George has a bag of marbles. Inside the bag are 5 red marbles, 3 green marbles, and 2 blue marbles. He draws out two marbles in
1. 1 answer
2. asked by ana
3. 824 views
I can't make this work. Please help?Insert parentheses when necessary to make the number sentence true. 5-3x4/6+4=-9 Thank you!
1. 1 answer
2. asked by Lisa
3. 816 views
For potassium metal, the heat of fusion is 2.33KJ/mol, and the entropy of fusion is 6.93 J/mol-K. At what temperature does
1. 1 answer
2. asked by julie
3. 806 views
Consider a room temperature 0.30M ammonia buffer at pH 9.5. As you raise the temperature of the buffer, would you expect the pH
1. 1 answer
2. asked by julie
3. 799 views
George has a bag of marbles. Inside the bag are 5 red marbles, 3 green marbles, and 2 blue marbles. He draws out two marbles in
1. 1 answer
2. asked by ana
3. 768 views
write each decimal as a fraction or mixed number in simplest form 0.78
1. 1 answer
2. asked by dave
3. 762 views
A person swings a 0.33 kg tether ball tied to a 5.4 m rope in an approximately horizontal circle.(a) If the maximum tension the
1. 1 answer
2. asked by John
3. 753 views
Any dielectric material other than vacuum has a maximum electric field that can be produced in the dielectric material before it
1. 2 answers
2. asked by lauren
3. 753 views
What is the simplest equivalent trigonometric expression for csc^2 A - 1/cot A csc A?
1. 1 answer
2. asked by Tye
3. 694 views
Nature's best wants to combine nuts they sell for $3.60 a pound with dried fruit they sell for $2.40 a pound to create a trail
1. 0 answers
2. asked by David
3. 692 views
1. Spongesa. are nonsymmetrical and have oscula b. lack organization into tissues and organs but have specialized cells c.
1. 0 answers
2. asked by mysterychicken
3. 676 views
A uniformly charged sphere has a potential on its surface of 410 V. At a radial distance of 20 cm from this surface, the
1. 1 answer
2. asked by Mari
3. 675 views
a bullet is fired from a gun that is 2.0 meters above flat ground. the bullet emerges from the gun with a speed of 250 m/s.a)
1. 1 answer
2. asked by JEZZ
3. 655 views
When we convert x-value to z- score and use Standard Normal distribution, which of the following statements is true?a) The mean
1. 1 answer
2. asked by Mary
3. 646 views
I have to convert the following pressures into torr:1. 2.48x10^-3atm 2. 4.75x10^6atm 3. 7.60x10^6 i have no idea how to convert
1. 3 answers
2. asked by bb
3. 640 views
CAN THIS BE POSTED TO A LINK THAT CAN LATER BE REMOVED?1. Creating Art - After completing the required readings for this week,
1. 3 answers
2. asked by bern
3. 629 views
Given the position function of an object moving in a straight line, measured in meters, from the origin. Describe the motion in
1. 0 answers
2. asked by Anonymous
3. 626 views
This is to do with genetics and drosophila. There are 3 pairs of characteristics - body colour, eye colour and wing length. The
1. 0 answers
2. asked by Anonymous
3. 625 views
Okay, I saw this one previously posted, but the answer it kept leading me to was wrong.A sports car of mass 1400kg (including
1. 4 answers
2. asked by Morgan
3. 624 views
I don't have DVDs of simpsons shows from Season 10, and I can't watch the full episode on YouTube. Is there a website that has
1. 2 answers
2. asked by AL 87
3. 600 views
a car is moving at 40km per hour what is the velocity in meters per second?
1. 1 answer
2. asked by Gee
3. 595 views
describe how microscopic-to-macroscopic body approach can be used
1. 1 answer
2. asked by crissy
3. 588 views
I need to find a short feature story. Can someone please show me some examples of these? Thanks!
1. 1 answer
2. asked by Alicia
3. 576 views
What are the similarities and differences between the life of factory workers in the US and the lives of the manchester mills
1. 3 answers
2. asked by Robert
3. 572 views
Hi everyonI need help with my home work pls help me. I have to write aboot surfing competition. Like I am a reporter and I have
1. 1 answer
2. asked by Bhavin
3. 568 views
what are the arguments of high income, middle income, low income and corporate tax payers who are critical o the Canadian
1. 0 answers
2. asked by Anonymous
3. 566 views
1) The major disadvantage to backing up your data on CDs or DVDs is that they are _____a) not writable b) slow c) volatile 2) A
1. 1 answer
2. asked by Jean
3. 559 views
you recently answered my question but this is part of it yes but what was the impact of the u.s political climate of the 1950's?
1. 2 answers
2. asked by sam
3. 556 views
How do i solve the following by factorization:1) 7.7^2-2.3^2 2) 43*56+43*44 I know how to do these manually but not by
1. 2 answers
2. asked by MJ
3. 555 views
I've been working hard on this french composition and I'm afraid I can no longer pick out the mistakes and accurately proofread
1. 2 answers
2. asked by Andy
3. 555 views
Simplify completely: -3(4-9)+6-2(-8+5)
1. 2 answers
2. asked by mary
3. 554 views
What similarities do you see in these two processes?
1. 5 answers
2. asked by lola
3. 545 views
research the factors behind economic growth in Hong Kong and Singapore. Which of these methods of encouraging growth would you
1. 2 answers
2. asked by Anonymous
3. 545 views

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