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how many moles of bi atoms are needed to combine with 158 mol of o atoms to make bismuth oxide
a piston cylinder assembly contains nitrogen initially at 20 lbfin2 80 degrees fahrenheit and occupying a volume of
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modern pennies are composed of zinc and coated with copper after making several scratches in a penny a student
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you are given a compound with an unknown concentration and you have five samples with known concentration of the
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how many moles of methane are produced when 826 moles of co2 gas react with excess hydrogen gas co24h2-----gtch42h2o i
to extend the safe diving limit both oxygen and nitrogen must be reduced in the breathing mixture one way to do this is
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1 a sample of neon gas occupies a volume of 28l at 18 atm what would be its volume at 12atm2 if a barometer at your
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a chemist obtains 2500 ml of a solution containing an unknown concentration of calcium iodide cai2 he pipets 25 ml of
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why is it important to apply the sample to the column in the smallest amount of solvent possible what would happen if