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13 terms

Chapter 12

STUDY
PLAY
This quantity can always be used in the same way as moles when interpreting balanced chemical equations
number of molecules
This is conserved only in reactions where the temperature is constant and the number of moles of gaseous reactants is the same as that of gaseous products
volume
This is conserved in every ordinary chemical reaction.
mass
the reactant that determines the amount of product that can be formed in a reaction
limiting reagent
the maximum amount of product that could be formed from given amounts of reactants
theoretical yield
the reactant that is not completely used up in a reaction
excess reagent
the amount of product formed when a reaction is carried out in the laboratory
actual yield
the ratio of the actual yield to the theorecitcal yield
percent yield
the calculation of quantities in chemical equations is called
stoichiometry
In every chemical reaction
mass and atoms are conserved
In a chemical reaction, the mass of the products
is equal to the mass of the reactants
What type of stoichiometric calculation does not require the use f the molar mass?
volume-volume problems
When two substances react to form products, the reactant which is used up is called the
limiting reagent