The percent yield of a reaction that starts with 10g of reactant and produces 8g of product can only be calculated if the ______ is known.

A. excess reactant

B. rate of reaction

C. theoretical yield

✓

D. actual yield

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excess reactant
rate of reaction
theoretical yield
actual yield

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The reaction of excess C₂H₄ with 64g of O₂ should produce 88g of CO₂. If 66g of CO₂ is obtained, the percent yield is:

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