What elements combine to make
Which product for designed for automotive acrylic paint is 100% non abrasive
by DMVCILL on March 9th, 2010
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no answers
| in Chemical composition
Which would you expect to have a higher melting point sodium chloride or aluminum oxide?
by maciaskari on March 7th, 2010
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2 answers
| in Chemical composition
A package of aluminium foil weigh 360 grams. How many moles of aluminium will you get when you buy this package of foil?
by smartgyal on February 15th, 2010
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no answers
| in Chemical composition
A sample of gas at 750 mm Hg contains 85% methane, 10% ethane, and 5% propane. What are the partial pressures of each gas in this mixture?
by Allie4226 on December 17th, 2009
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one answer
| in Chemical composition
Arsenic-74 has a half life (t ½ = 18 days) how much if a 5.0 mg sample remains after 90 days?
by Allie4226 on December 17th, 2009
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no answers
| in Chemical composition
What is the concentration of HF in a solution with pH = 3.40 and Ka=6.8x10-4.
HF H+ + F- ?
by Allie4226 on December 17th, 2009
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no answers
| in Chemical composition
Hydrochloric acid in solution gives : HClH+ + Cl- What is the concentration of H+ in a solution of 1.5 M HCl?
by Allie4226 on December 17th, 2009
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no answers
| in Chemical composition
A solution contains a mixture of Ag+, Pb+ and Hg+- describe a procedure that will allow you to seperate Pb+ from the other ions?
by tchoud02 on December 11th, 2009
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no answers
| in Chemical composition
What is the pH level of body acid?
by Dark_Lord1617 on November 27th, 2009
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one answer
| in Chemical composition
How to separat platinum from any other metals if they are forming an alloy?
by gergi on November 24th, 2009
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one answer
| in Chemical composition
The heat change for the decomposition of hydrogen peroxide, H2O2, to form water is –197 kJ per mol hydrogen peroxide. What is the heat change for the decomposition of 109.1 g of hydrogen peroxide?
by Anonymous on November 16th, 2009
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one answer
| in Chemical composition
What is the worst metal to build a statue with out of magnesium, copper, zinc, and silver?
by Anonymous on November 16th, 2009
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3 answers
| in Chemical composition
A 2.867g sample of a monoprotic acid was dissolved in water and required 25.45 mL of a 0.1578 M NaOH solution for neutralization. Calculate the molar mass of the acid.
by Anonymous on November 11th, 2009
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one answer
| in Chemical composition
Calculate the volume of a 0.125 M CuSO4 solution that would react with 5.65 g of zinc.
by Anonymous on November 11th, 2009
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one answer
| in Chemical composition
A sample of seawater has 4% made up of salts. If you evaporated 5 kg of the sample, how much salt would you have?
by Anonymous on November 9th, 2009
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2 answers
| in Chemical composition
Explain this statement, ''All acids contain hydrogen, but not all compounds containing hydrogen are acids.''
by Anonymous on November 9th, 2009
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one answer
| in Chemical composition
Tell me everything that you can about covalent and ionic bonds.
by Anonymous on November 8th, 2009
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one answer
| in Chemical composition
What are some neat things you can think of to do with Rubidium Fluoride?
by Guess Wright on November 8th, 2009
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one answer
| in Chemical composition
What happens if you mix bleach and oxiclean?
by lalaland on November 7th, 2009
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one answer
| in Chemical composition
Can explain acid/alkaline in simple terms? Thanks.
by ahmeow on November 5th, 2009
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2 answers
| in Chemical composition
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