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2010
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Questions Asked on March 1, 2010

Solid aluminum carbonate decomposes to form solid aluminum oxide and carbon dioxide gas.Is Al2(CO3)3 ==> Al2O3 + CO2 the right
1. 2 answers
2. asked by Jack
3. 11,005 views
What is the balanced ionic equation between bromine and sodium bisulfite??? thanks
1. 3 answers
2. asked by niki
3. 6,438 views
Hello, if the volume of a rectangular prism is LWH = 64 cubic inches, what are the dimensions of a rectangular prism with
1. 15 answers
2. asked by Andrew
3. 5,491 views
What element is undergoing reduction in the following reaction?Zn(s) + AgNO3(aq) --> Zn(NO3)2 + 2 Ag(s)
1. 2 answers
2. asked by candace
3. 5,066 views
A 1 L flask is filled with 1.40 g of argon at 25 degrees celcius. A sample of ethane vapor is added to the same flask until the
1. 5 answers
2. asked by supaflychic101
3. 5,023 views
Explain why a mixture formed by mixing 100 mL of 0.100M CH3COOH and 50 mL of 0.100M NaOH will act as a buffer? in adittion to
1. 2 answers
2. asked by Rav
3. 4,467 views
What two components gain heat when ice is added to water?Express it mathematically. (use appropriate symbols, not your actual
1. 2 answers
2. asked by Anonymous
3. 3,874 views
A student heats 5.128g of the sodium carbonate/sodium bicarbonate mixture to a constant mass of 4.256g. Determine the mass of
1. 2 answers
2. asked by Anna
3. 3,833 views
19. Fool Proof Software is considering a new project whose data are shown below. The equipment that would be used has a 3-year
1. 1 answer
2. asked by Andy
3. 3,570 views
Suppose you wanted to dissolve 106g of Na2CO3 in enough H2O to make 6.00 L of solution.A. What is the molar mass of Na2CO3? B.
1. 3 answers
2. asked by Maddie V
3. 3,433 views
1. Langston Labs has an overall (composite) WACC of 10%, which reflects the cost of capital for its average asset. Its assets
1. 3 answers
2. asked by Andy
3. 3,241 views
Balance the following equations.3. C12H22O11 + O2 = CO2 + H2O Answer: C12H22O11 + 12 O2 = 12 CO2 + 11 H2O 8. CH3OH + O2 = CO2 +
1. 1 answer
2. asked by John
3. 3,173 views
A 0.53-kg billiard ball initially at rest is given a speed of 12 m/s during a time interval of 4.0 ms. What average force acted
1. 4 answers
2. asked by Chels
3. 3,057 views
a student synthesized 6.895g of barium iodate monohydrate, Ba(IO3)2.H2O, by adding 30.00 mL of 5.912*10^-1M barium nitrate,
1. 3 answers
2. asked by aymal
3. 2,807 views
two pint charges are 4 cm apart. They are moved to a new distance of 2 cm. By what factor does the resulting mutual forces
1. 2 answers
2. asked by morgan
3. 2,804 views
How many molecules of BrF2 form when 384g Br2 react with excess F2?equation: Br2 + 5F2 ---> 2BrF5 I really just need the
1. 2 answers
2. asked by Ana
3. 2,765 views
A car of mass 600 kg is travelling at 10m/s. when brakes are applied, it comes to rest in 10 M.what is the average force exerted
1. 7 answers
2. asked by Farah
3. 2,594 views
Calculate the heat of formation reaction forSiO2(s)+4HF(g) --> SiF4(g)+2H2O(l) I got -129.6 and it says I'm wrong
1. 1 answer
2. asked by Kaylene
3. 2,469 views
Dry air near sea level has the following composition by volume: N2, 78.08 percent; O2, 20.94 percent; Ar, 0.93 percent; CO2,
1. 2 answers
2. asked by Tanisha
3. 2,148 views
What is the specific volume of a gas at 180psia & 90°F when its density is 0.0892 lb/cu ft at 14.7psia & 32°F. Calculate its
1. 1 answer
2. asked by Janus
3. 2,128 views
what is the final pH after 1 drop(.05ml) of 6M HCl is added to 1.0L of freshly prepared pure water that was originally at a pH
1. 2 answers
2. asked by tiffany
3. 1,961 views
1) use the half-angle formulas to determine the exact values of the sine, cosine, and tangent of the angle.67 degrees and 30'
1. 1 answer
2. asked by Janet
3. 1,910 views
Write the equationan absolute value function is shifted up 2 units shifted right 3 units and horizontally stretched by 5
1. 3 answers
2. asked by Arielt
3. 1,888 views
A 2.00 M solution of CaCl2 in water has a density of 1.17 g/mL. What is the mole fraction of CaCl2?
1. 2 answers
2. asked by gaby
3. 1,825 views
The hydrolysis of sucrose into glucose and fructose in acidic water has a rate constant of at 25 degrees C.Assuming the reaction
1. 2 answers
2. asked by Katherine
3. 1,746 views
a horizontal force of 95 N is applied to 60 kg crate on rough , level surface. if crate accelerates at 1.20 m/s2 , what is
1. 1 answer
2. asked by jerry
3. 1,670 views
The pressure of 6.0 L of an ideal gas in a flexible container is decreased to one-half of its original pressure, and its
1. 1 answer
2. asked by Tanisha
3. 1,638 views
2. The advantages of vascular tissue over nonvascular tissue are evident ina. whether organisms have alternation of generations
1. 3 answers
2. asked by mysterychicken
3. 1,626 views
Nitroglycerin, an explosive compound, decomposes according to the equation below.4 C3H5(NO3)3(s) 12 CO2(g) + 10 H2O(g) + 6 N2(g)
1. 1 answer
2. asked by Tanisha
3. 1,522 views
A 0.500 L solution of 7.50 M hydrochloric acid is used to neutralize a 250.0 g sample of calcium hydroxide. Calcium chloride –
1. 1 answer
2. asked by BT
3. 1,393 views
If a metal stays solid at Farenheit temperature below 1801.5 degrees. Determine ( in terms of an inequality) those Celsius
1. 3 answers
2. asked by B.B.
3. 1,331 views
what an electronic medical record is, summerize the major features and benifits of EMRs, detail the importance of practice
1. 0 answers
2. asked by ssf
3. 1,321 views
A gas-filled balloon having a volume of 1.50 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above
1. 2 answers
2. asked by Tanisha
3. 1,295 views
A 1.33 m solution of the solute diethyl ether dissolved in the solvent tetrahydrofuran is available. Calculate the mass(kg) of
1. 2 answers
2. asked by Luc
3. 1,259 views
Is this a descriptive study or an inferential study. I say descriptive......The table below shows the average income by age
1. 0 answers
2. asked by carmen
3. 1,237 views
letter recommending to a company's board of directors that affirmative action policies be implemented Include points supporting
1. 3 answers
2. asked by kay
3. 1,222 views
2. The advantages of vascular tissue over nonvascular tissue are evident ina. whether organisms have alternation of generations
1. 0 answers
2. asked by mysterychicken
3. 1,185 views
I had a very good day today, and I wrote about it as well. I had a title for it which was: An extra-ordinary day, but I want to
1. 3 answers
2. asked by Sara
3. 1,182 views
I have almost completed my assignment, but am stuck on this question. I researched my text and other outside sources and can't
1. 0 answers
2. asked by Jen
3. 1,168 views
WHICH equation describes the relationship between X and Y as in the table below x y3 5 4 9 5 13 6 17 a.
1. 6 answers
2. asked by LOU LOU
3. 1,157 views
I'm really struggling with questions about Joan of Arc! I have a worksheet to answer about the 1999 film Joan of Arc, but I have
1. 1 answer
2. asked by Kerry
3. 1,157 views
How do authors of short stories use various literary devices to help with the development of theme?
1. 1 answer
2. asked by collette
3. 1,128 views
Is this a descriptive study or an inferential study. I say inferential......The average professional musicians’ salaries (in
1. 0 answers
2. asked by carmen
3. 1,108 views
Balance the following equations.A) SO2 + O2 --> SO3 B)Fe2O3 + H2 --> Fe +H2O C)P + O2 -->P4O10 D)Al + N2 --> AlN
1. 1 answer
2. asked by Jack
3. 1,089 views
TiO2(s) + H2(g) Ti(s) + H2O(g)(a) Consider the unbalanced equation above. What is the maximum mass of titanium that can be
1. 2 answers
2. asked by Megan
3. 1,087 views
Explain the use of repetition of the pronoun "I".
1. 2 answers
2. asked by Troy
3. 1,069 views
A typical act of servant leader should be to:a) work for salary no higher than that of group members. b) expect group members to
1. 1 answer
2. asked by vedrana
3. 1,067 views
an opinion poll asks a sample of 500 adults (an SRS) whether they favor giving parents of school age children vouchers that can
1. 0 answers
2. asked by mary
3. 1,058 views
how much heat will be released if 30 grams of octane is burned in excess oxygen?
1. 1 answer
2. asked by lisa
3. 1,032 views
What is the meaning of 'guy'? Is it a boy or a man? Can we use 'guy' for a woman? If you say 'you guys' to some people, is it a
1. 0 answers
2. asked by rfvv
3. 1,032 views
A 147 g baseball is dropped from a tree 12.0 m above the ground. If it actually hits the ground with a speed of 8.00 m/s, what
1. 1 answer
2. asked by peyton
3. 1,020 views
WHY DID SPAIN BUILD MISSIONS IN THE BORDER LANDS OF NEW SPAIN?
1. 1 answer
2. asked by NAKYA
3. 1,019 views
The Gibbs Baby Food Company wishes to compare the weight gain of infants using their brand versus their competitor’s brand. A
1. 1 answer
2. asked by Barbara
3. 1,016 views
14. The stomata are responsible fora. translocation b. leaf growth c. regulating water loss d. the transport of minerals D? 2.
1. 0 answers
2. asked by mysterychicken
3. 1,011 views
If a diamond shape = 2/3 how do you draw 1/3, 1, 4/3, 2thanks
1. 1 answer
2. asked by Emma
3. 1,005 views
What is the minimum work needed to push a 800 kg car 860 m up along a 9.0 degree incline? Ignore friction. Then assume the
1. 3 answers
2. asked by Anonymous
3. 976 views
Need help with these--8. Medicinal uses of plants include all of the following EXCEPT a. cancer treatment b. treatment of
1. 1 answer
2. asked by mysterychicken
3. 973 views
a. The sales representative here tells you they also have two floor plans available, but they only have 38 homes still for sale.
1. 2 answers
2. asked by Anonymous
3. 965 views
98N-T=10aT-18.89N=3a I worked on the problem and I end up getting two equations but now I have to find T and a. For some reason,
1. 3 answers
2. asked by Ana
3. 942 views
A typical act of servant leader should be to:a) work for salary no higher than that of group members. b) expect group members to
1. 0 answers
2. asked by vedrana
3. 937 views
which of the forces at work in Europe played the greatest role in helping to prompt the outbreak of war
1. 2 answers
2. asked by lissie
3. 930 views
can u edit this small paragraph plz? thnx!Have you ever thought of your goals and skills that you would like to improve. There
1. 1 answer
2. asked by Thara!
3. 925 views
let the function g be defined byg(x)=1-5x if the domain of the function of g is {x-3 is less than or equal to x which is less
1. 0 answers
2. asked by Arielt
3. 924 views
4x^2/[(1.5-x)(2.0-2x)^2] == 2.72 x 10^11 solve for x
1. 1 answer
2. asked by josh
3. 911 views
A rectangular field 250 m long by 110 m wide. How much shorter is it to walk diagonally across the field than around the sides?
1. 2 answers
2. asked by H
3. 910 views
what is the purpose of the george washington cabeniet
1. 2 answers
2. asked by PAVLEEN
3. 896 views
the questionsa are about the Truman Doctrine1)To what extent were we able to carry out our foreign policy aims? 2)To what extent
1. 2 answers
2. asked by Ashlyn
3. 896 views
I have no idea how to do these type of problems.-------Problem-------- Solve each equation on the interval 0 less than or equal
1. 2 answers
2. asked by Kate
3. 893 views
1. TexMex Products is considering a new salsa whose data are shown below. The equipment that would be used would be depreciated
1. 1 answer
2. asked by Andy
3. 879 views
If you are standing on the edge of a canyon and yell into the canyon, how long will it take the echo to return to you if the
1. 0 answers
2. asked by Ash
3. 877 views
Give the percent yield when 15.9 g of CO2 are formed from the reaction of 4.000 moles of C8H18 with 4.000 moles of O2.2 C8H18 +
1. 1 answer
2. asked by candace
3. 866 views
I need to write the net inonic equation for (NH4)2SO4(aq) and KNO2(aq). I need to know the reactants and the product.I worked it
1. 2 answers
2. asked by Tiffany
3. 863 views
PLEASE HELP MS.SUE.I really need your help I'm in 3rd grade and I have to do a science fair project. I'm planning on doing the
1. 1 answer
2. asked by Fatima
3. 862 views
1. The Federal Reserve recently shifted its monetary policy, causing Lasik Vision's WACC to change. Lasik had recently analyzed
1. 1 answer
2. asked by Andy
3. 862 views
How fast must a cyclist climb a 4.0 degree hill to maintain a power output of 0.35 hp? Neglect work done by -friction, and
1. 1 answer
2. asked by peyton
3. 837 views
7. A sample of 40 observations is selected from one population. The sample mean is 102 and the sample standard deviation is 5. A
1. 1 answer
2. asked by Barbara
3. 834 views
An electron moving to the right at 3.0% the speed of light enters a uniform electric field parallel to its direction of motion.
1. 2 answers
2. asked by Chris
3. 828 views
Consider the following balanced reaction. What mass (in g) of CO2 can be formed from 743 mg of O2? Assume that there is excess
1. 1 answer
2. asked by candace
3. 808 views
A lens has a magnification of +2.0 and if the focal length is +10 find the impage position and the object position.The type of
1. 1 answer
2. asked by Yasmin
3. 800 views
A 1300 kg sports car accelerates from rest to 90 km/h in 7.0 s. What is the average power delivered by the engine?
1. 2 answers
2. asked by peyton
3. 792 views
What is the pH of a solution containing 0.10 M propanoic acid (HC3H5O2) and 0.10 M sodium propanoate after 0.02 mol of HCl is
1. 1 answer
2. asked by Blake
3. 788 views
A submarine was cruising at a depth of 153 m. It then rose at 4.5 m/min for 15 min.What was the submarine's depth at the end of
1. 1 answer
2. asked by Anonymous
3. 784 views
how do i solve these two problems?3log(base5)^(x^2+9)-6 = 0 log(base8)^(n-3) + log(base8)^n+4)= 1 can you tell me step by step
1. 3 answers
2. asked by Ana
3. 781 views
what was champva year of establishment??
1. 0 answers
2. asked by jennifer
3. 774 views
A poster is to have an area of 170 in2 with 2 inch margins at the bottom and sides and a 3 inch margin at the top. What
1. 7 answers
2. asked by Sasha
3. 757 views
John's car is 13 feet long. He is making a model that is 1/12 of the actual size. Which proportion below should be used to find
1. 1 answer
2. asked by Sarah
3. 753 views
What are the similarities and differences of static and current electricity?
1. 0 answers
2. asked by Sarah
3. 752 views
how long does it take a 19kW steam engine to do 6.8x10^7 J of work?
1. 2 answers
2. asked by yo
3. 746 views
Why does Langston Hughes repeat the line, "I've known rivers," in the Poetry "The Negro Speaks of Rivers."
1. 1 answer
2. asked by Troy
3. 741 views
What mass of CO2 could be absorbed by 1.34 g of CaO?
1. 1 answer
2. asked by Tyler
3. 734 views
How to convert(a)ethane to propanone (b)propanone to ethane (c)isobutane to propanone (d)methane to benzene (e)benzene to
1. 1 answer
2. asked by sashank
3. 730 views
For the reaction A to products}, the following data were obtained: t=0 s, A}]=0.715 M; 22 s, 0.605 M; 74 s, 0.345 M; 132 s,
1. 1 answer
2. asked by joe
3. 723 views
Perform the addition or subtraction and use the fundamental identities to simplify.tan x - sec^2 x / tan x I do not know where
1. 2 answers
2. asked by Hannah
3. 719 views
Approximate the equation's solutions in the interval (0,2pi).sin2x sinx = cosx I know that I should work on the left side first.
1. 1 answer
2. asked by Hannah
3. 715 views
A submarine was cruising at a depth of 153 m. It then rose at 4.5 m/min for 15 min.What was the submarine's depth at the end of
1. 1 answer
2. asked by Anonymous
3. 703 views
What mass in g of NaCl is formed from the reaction of 54.0 mL of a 0.078 M AgC2H3O2 solution with 71.0 mL of 0.109 M MgCl2
1. 1 answer
2. asked by candace
3. 699 views
What are the incorrect grammars, verb forms, and case endings in my Latin story below?Illa eripio animalia. Vikki amat eripui
1. 2 answers
2. asked by Starr
3. 698 views
20. TexMex Products is considering a new salsa whose data are shown below. The equipment that would be used would be depreciated
1. 0 answers
2. asked by ABC
3. 697 views
what dose con quienes va Tomas? mean
1. 3 answers
2. asked by kalli
3. 697 views
You have found an old parchment that describes the location of buried treasure! It states:"On Triangle Island there are only two
1. 1 answer
2. asked by Ashley
3. 695 views

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