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Does the problem list a starting quantity for two or more reactants?
| YES
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Is one of the reactants in excess?
| YES
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Normal Stoichiometry Problem.
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NO
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NO
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Does the problem state that one chemical reacts in excess with another reactant?
| YES
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Normal Stoichiometry Problem.
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Limiting Reactant Problem.
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NO
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Only one reactant product mass is given in the problem.
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