1 __ What does a percent yield of 100% indicate? a. No product was formed b. The actual yield equals the theoretical yield c. More product was formed than expected d. The reaction did not proceed

The question is asking what a percent yield of 100% indicates in a chemical reaction. The percent yield is a measure of the efficiency of a chemical reaction, defined as the ratio of the actual yield (the amount of product actually produced) to the theoretical yield (the amount of product that would be produced if the reaction were perfect), multiplied by 100%. A percent yield of 100% means that the actual yield is equal to the theoretical yield, which indicates that the reaction was perfectly efficient and no product was lost. Therefore, the correct answer is option b: The actual yield equals the theoretical yield.