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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

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