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Questions Asked on December 16, 2010

Solve an equilibrium problem (using an ICE table) to calculate the pH of each solution: a solution that is 0.170 M in HC2H3O2
1. 5 answers
2. asked by Lisa
3. 7,954 views
Copper sulfate is a hydrated crystal with the formula CuSO4*5H20 and a deep blue color. when its heated, the crystals crumble
1. 3 answers
2. asked by Anonymous
3. 5,263 views
a chemist needs to order Na2B4O7. One supplier offers it in an anhydrous (without water) form, while another offers it as a
1. 1 answer
2. asked by Anonymous
3. 3,851 views
A constriction in a pipe reduces its diameter from 4.0 cm to 2.0 cm. Where the pipe is wideThe fluid velocity is 8.0m/s. Where
1. 4 answers
2. asked by Sammy
3. 3,788 views
what is the mass of solute dissolved in 50.0g of a 12.5% saline solution?
1. 6 answers
2. asked by debbie
3. 3,713 views
How many moles of water, H2O, are present in 75.0 g H2O?
1. 2 answers
2. asked by t
3. 3,543 views
A researcher put 10.0 moles of N2O into a 2-L container at some temperature where it decomposes according to the following: N2O
1. 2 answers
2. asked by Jessica
3. 3,507 views
Lily went for 8 rides at the county fair. Some rides were on the merry-go-round, and the rest were on the pirate ship. The total
1. 3 answers
2. asked by Evelyn
3. 3,297 views
Water (density = 1.0 × 103 kg/m3) flows through a horizontal tapered pipe. At the wide end its speed is 4.0m/s and at the
1. 1 answer
2. asked by Sammy
3. 3,154 views
In order to analyze the waste water containing Co^2+ from a manufacturing process, 1.0L of water was evaporated to 10.0mL, then
1. 2 answers
2. asked by John
3. 2,992 views
Seven brothers' families grew to more than one thousand people in 100 years.Does families need an apostrophe? The mens group
1. 2 answers
2. asked by jill
3. 2,396 views
The gaseous product of a reaction is collected in a 25.0-L container at 27 C. The pressure in the container is 216 kPa, and the
1. 2 answers
2. asked by Ashleigh
3. 2,375 views
Two boxes are seen to accelerate at the same rate when a force F is applied to the first and 5 F is applied the second.What is
1. 1 answer
2. asked by jane
3. 2,246 views
the solution to the system of equations y= 2x and y = -x + 3 isa)2,1 b)(-1,2) c)2,-1) d)(1,2)
1. 2 answers
2. asked by david
3. 2,243 views
the pKb for methylamine is 3.36, what is the Kb for methylamine?pKa+pKb= 14.00 Kb= 10^-pKb = 4.4x10^-4 is the answer but HOW??
1. 3 answers
2. asked by Lori
3. 1,845 views
Cliff has some money he wants to invest for his retirement. He is offered two options:1. 10%/a simple interest 2. 5%/a
1. 1 answer
2. asked by Emily
3. 1,794 views
A hill is 290 m long and makes an angle of 10 degrees with the horizontal. As a 68 kg jogger runs up the hill, how much work
1. 2 answers
2. asked by Casey
3. 1,719 views
What is the equilibrium constant expression for the predominant equilibrium in HPO4^2- (aq)?
1. 6 answers
2. asked by Liz
3. 1,561 views
A gas mixture with a total pressure of 770 contains each of the following gases at the indicated partial pressures: CO2 ,
1. 1 answer
2. asked by Ashley
3. 1,493 views
Calculate the empirical formula of a compound containing 52.14% C, 13.12% H, and 34.73% O.I don't understand how they got the
1. 2 answers
2. asked by kim k
3. 1,486 views
Triangle ABC has the following angle measures. Angle A = 44. Angle B = 4x. Angle C = 2x + 16. Find the measure of angle C.
1. 1 answer
2. asked by jess
3. 1,476 views
A thunderstorm has an electric field one night of 1.5 105 N/C. What is the magnitude of the electric force on an electron in
1. 1 answer
2. asked by jesse
3. 1,453 views
What is the value of x if 10 + 25x=5
1. 2 answers
2. asked by Tahaji
3. 1,429 views
Some hydrogen and iodine are mixed up at 229 degrees celsiusin a 1-L container. When equilibrium is established, the following
1. 4 answers
2. asked by jlh
3. 1,348 views
A cowboy at a dude ranch fills a horse trough that is 1.7 m long, 50 cm wide, and 40 cm deep. He uses a 1.9 cm diameter hose
1. 1 answer
2. asked by Alex
3. 1,270 views
six people are going to be seated in a row of 8 chairs. how many different ways may they be seated?
1. 1 answer
2. asked by tyler
3. 1,251 views
What is the {\rm HCl} concentration if 54.2 mL of 0.100 M {\rm NaOH} is required to titrate a 30.0 mL sample of the acid?
1. 0 answers
2. asked by casey
3. 1,211 views
a soccer ball is kicked into the air at an angle of 38 degrees above the horizontal. The initial velocity of the ball is
1. 0 answers
2. asked by Anonymous
3. 1,207 views
What are the bitoic and abiotic factors in a desert ecosystem? How do each of these interact with/affect each other? (be
1. 2 answers
2. asked by The Official Pancake Queen
3. 1,195 views
What are some main points of rising action in the Scarlet Ibis?
1. 1 answer
2. asked by Maya
3. 1,190 views
when did the siminole wars begin.who was the simenole leader who led his tribe in order to keep siminole lands and homes in
1. 2 answers
2. asked by daniel 4th grade
3. 1,183 views
In rectangle ABCD line EF joins the midpoint of line AB and BC. Line BE equals 5, line BF equals 12, find line EF, line AC and
1. 0 answers
2. asked by Amie
3. 1,144 views
a)Approximate root 26 by using the linearization of y= root x at the point (25,5) Show the computation that leads to your
1. 1 answer
2. asked by Jerry
3. 1,138 views
Using the formula 4.9t^2... A object is dropped how long will it take it to fall 92 meters
1. 2 answers
2. asked by ALI
3. 1,138 views
A researcher put 10.0 moles of N2O into a 2-L container at some temperature where it decomposes according to the following: N2O
1. 1 answer
2. asked by Jessica
3. 1,132 views
Triangle ABC is an isosceles triangle, where angle B is the vertex angle. If BC = 10x-4 , AC= 2x+18 , and AB= 6x+32, find the
1. 3 answers
2. asked by tim
3. 1,126 views
In a triangle ABC,angle b is 4 times angle "A" and angle "C" IS 17 less than 5 times angle "A". Find the size of the angles.
1. 1 answer
2. asked by esther
3. 1,109 views
around how many percent of people think they don't need college degree to find a job
1. 1 answer
2. asked by 000
3. 1,066 views
one type of probability used everyday is: a)experienced probabilityb)scientific probability c)frequency of occurence d)none of
1. 1 answer
2. asked by david
3. 1,065 views
Determine whether Cd^2+ can be separated from Zn^2+ by bubbling H2S through a 0.3 M HCl solution that contains 0.005M Cd^2+ and
1. 1 answer
2. asked by coleman
3. 1,052 views
A 1300 sports car accelerates from rest to 95KM/H in 7.0S .What is the average power delivered by the engine?
1. 2 answers
2. asked by HELP
3. 1,036 views
An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field
1. 3 answers
2. asked by sue
3. 1,026 views
what type of readioactive decay results in uranium-238 becoming thorium-234?
1. 0 answers
2. asked by yuku
3. 1,026 views
An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field
1. 2 answers
2. asked by tammy mikols
3. 1,013 views
An airtight box, having a lid of area 12 in2, is partially evacuated. Atmospheric pressure is15 lb/in2. A force of 108 lb is
1. 1 answer
2. asked by Ken
3. 1,003 views
the perimeter of the rectangular shaped base of a piano is 16 feet. what are all the possible dimensions of the piano using only
1. 2 answers
2. asked by alaysia jones
3. 998 views
Find-x when x=- 7/51
1. 1 answer
2. asked by esther
3. 993 views
A cannon mounted on a pirate ship fires a cannonball at 125 m/s horizontally, at a height of 17.5 m above the ocean surface.
1. 1 answer
2. asked by tammy mikols
3. 951 views
Is this sentence punctuated correctly.My garden is full of water, because of yesterday's rain
1. 4 answers
2. asked by Anonymous
3. 919 views
what is the volume occupied by 16.0g ethane gas (C2H6) at 720 Torr and 18C?V=nRT/P conversion of mol: 16.0g C2H6 X 1mol
1. 1 answer
2. asked by julia
3. 917 views
two runners jog around an oval path at constant rates, but in opposite direstions. one runner completes a lap every 10 minutes,
1. 1 answer
2. asked by Tom
3. 908 views
A merry-go-round is rotating at 4.775 revs/min with a 45 kg child on the outer edge. The radius is 2.0 m. The child moves to the
1. 2 answers
2. asked by Jon
3. 907 views
A 1.5 kg otter starts from rest at the top of a muddy incline 87.1 cm long and slides down to the bottom in 0.60 s.What net
1. 1 answer
2. asked by jane
3. 906 views
The last question for my survey: A girl and a boy love each other a lot. They always text each other: "I Love You" and stuff.
1. 3 answers
2. asked by Dream Gurly
3. 900 views
log 1/x + 3log2=log32
1. 2 answers
2. asked by jessica
3. 872 views
Write the trigonometric expression in terms of sine and cosine, and then simplify.cot(x)/csc(x)-sin(x)
1. 1 answer
2. asked by chris
3. 851 views
During early civilizations why did most cities rise in river valleys?a.River valleys provided work to men who built dikes and
1. 3 answers
2. asked by alley
3. 849 views
a soccer ball is kicked into the air at an angle of 38 degrees above the horizontal. The initial velocity of the ball is
1. 1 answer
2. asked by Anonymous
3. 829 views
The passage is an excerpt from President Bill Clinton’s State of the Union address in January 1998.. . . As we enter the
1. 1 answer
2. asked by anonymous
3. 808 views
Two railroad cars, each of mass 7600KG and traveling 85KM/H in opposite directions, collide head-on and come to rest. How much
1. 1 answer
2. asked by HELP ASAP
3. 806 views
Calculate the minimum change in velocity (delta V or ∆V) required for the Space Shuttle to decrease its altitude to 60 miles
1. 0 answers
2. asked by Vanessa
3. 795 views
how would you solve the following by substitution? {4y-5x=9{x-4y=11 PLZ HELP!!! THNX!
1. 1 answer
2. asked by Crystal
3. 795 views
Figurative language
1. 2 answers
2. asked by Bob
3. 788 views
How much is the oxidation state of Cl2O3
1. 1 answer
2. asked by Vlera
3. 787 views
{At a restaursant}For hear or to go? Is this for here or to go? It's for here, please. It is to go, please. (Are the expressions
1. 1 answer
2. asked by rfvv
3. 785 views
At the mall, you spent a total of $170.86.You bought 2 pairs of jeans for $ 39.95 each,a jacket for $45.99, and shirts for
1. 1 answer
2. asked by Daniel
3. 781 views
rudy went to the mall to spend some of his money he earned. he spent 1/3 of his money o n a new shirt. He then went to to the
1. 5 answers
2. asked by lisa
3. 779 views
Every year on the first day of Christmas my true love gives me one gift, a partridge in a pear tree. On the second day of
1. 2 answers
2. asked by Anonymous
3. 773 views
A long jumper travels 8.95 meters during a jump. He moves at 10.8 m/s when starts his leap. At what angle from the horizontal
1. 3 answers
2. asked by sue
3. 757 views
Use this table to answer the questions.Height (in inches) Frequency 50-52 5 53-55 8 56-58 12 59-61 13 62-64 11 1. Identify the
1. 1 answer
2. asked by Todd
3. 751 views
My study group is lost on this one also..Suppose you are managing 25 employees, and you need to form three teams to work on
1. 1 answer
2. asked by Friends
3. 751 views
prove the identity:csc x-1/csc x+1 = cot^x/csc^x+2 csc x+1
1. 1 answer
2. asked by shela
3. 742 views
A 4000 kg truck traveling at constant velocity and a braking force of 20000 N is suddenly applied. It takes 6 seconds for the
1. 1 answer
2. asked by jldrew
3. 729 views
1. Our school play club will put on a play Nasrredin and the Fish.2. Our school play club will perform a play Nasrredin and the
1. 2 answers
2. asked by rfvv
3. 718 views
A rock, which weighs 350 lb in air, weighs 226 lb when submerged in freshwater (62.4 lb/ft3). The volume of the rock is:
1. 0 answers
2. asked by Sammy
3. 709 views
fill in the missing symnbols in the following nuclear bombardment reactionsa. 96 4 100 42Mo + 2He = 43 Tc+ ? b. 59 1 56 27Co+ 0n
1. 3 answers
2. asked by coleman
3. 706 views
what property of the materials used in computer chips makes them useful as switches that trun electricty on and off
1. 1 answer
2. asked by yuku
3. 705 views
Please check if this is right:Demain matin, je vais aller à la ferme. Je n’ai jamais visité une ferme avant. D’abord, je
1. 5 answers
2. asked by Gabby
3. 695 views
Writing of grito de Dolores and petition of the first continental congress?
1. 2 answers
2. asked by Jim
3. 684 views
A person in an elevator is holding a 13 kg block by a cord rated to withstand a tension of 226 N. When the elevator starts up,
1. 1 answer
2. asked by Georgia
3. 680 views
Calculate the molarity of the Co^2+ ion in each of the solutions 1-5. The new molarity is given by the molarity of the stock
1. 2 answers
2. asked by John
3. 660 views
A rock, which weighs 350 lb in air, weighs 226 lb when submerged in freshwater (62.4 lb/ft3). The volume of the rock is:
1. 0 answers
2. asked by Ken
3. 658 views
what volume of 0.250 M calcium chloride needs to be added to sodium phosphate to produce 35.0 g of calcium phosphate ?
1. 1 answer
2. asked by jenna
3. 658 views
A 20.5 lb cast iron boat anchor displaces 1.33 qt of water when submerged. What is the density of the cast iron, in g/cm3?1L=1.0
1. 2 answers
2. asked by julia
3. 653 views
when did the siminole wars begin.who was the simenole leader who led his tribe in order to keep siminole lands and homes in
1. 1 answer
2. asked by Anonymous
3. 649 views
I need helps with finding the mood for this:Your school needs more money for basic supplies. I kind of have to "beef" that
1. 1 answer
2. asked by Gabbi
3. 646 views
where are the cell and plasma membranes located
1. 3 answers
2. asked by Miranda
3. 646 views
a soccer ball is kicked into the air at an angle of 38 degrees above the horizontal. The initial velocity of the ball is
1. 0 answers
2. asked by Anonymous
3. 645 views
9. Features including easily understood symbols, illumination, and colorful shapes are common ina. paintings from the Gothic
1. 1 answer
2. asked by mysterychicken
3. 644 views
I have to write an expository essay on Second Hand Lions. How would i do that?
1. 2 answers
2. asked by kay
3. 641 views
Posted by rfvv on Thursday, December 16, 2010 at 3:21am.{At a restaursant} For hear or to go? Is this for here or to go? It's
1. 2 answers
2. asked by rfvv
3. 635 views
A cannon mounted on a pirate ship fires a cannonball at 125 m/s horizontally, at a height of 17.5 m above the ocean surface.
1. 2 answers
2. asked by matt chirl
3. 634 views
9. Features including easily understood symbols, illumination, and colorful shapes are common ina. paintings from the Gothic
1. 4 answers
2. asked by mysterychicken
3. 629 views
) According to the text, marketing means:
1. 2 answers
2. asked by Anonymous
3. 628 views
One cm of a 10-cm-long rod is made of metal, and the rest is wood. The metal has a density of 5000 kg/m3 and the wood has a
1. 1 answer
2. asked by Sara
3. 620 views
You have two choices, to stay or to go.to stay and to go are the infinitives they are used as adjectives?
1. 1 answer
2. asked by michael
3. 610 views
I need help really quick unscrambling this word!!!AAAATTTLIIRRONNME Its two words and its the name of a mall. the first words
1. 2 answers
2. asked by nick
3. 607 views
In 1973, Congress enacted the endagered species Act (ESA) to protect plants and animals from extinction. Many methods are used
1. 2 answers
2. asked by esmeralda
3. 600 views
Last Friday, Sam went to high school to sign up for a class.to high school infinitive to sign up infin. Are they both adverb
1. 1 answer
2. asked by michael
3. 597 views
a firm's marketing mix decision areas would not include: A. Product B. Promotion C. Price D. People
1. 0 answers
2. asked by Anonymous
3. 595 views

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