Circle the letter of the best answer.
1. Which statement is true?
a. Mole ratios limit the number of significant figures in a calculation.
b. You must know the masses of all the reactants in a chemical equation in order to determine the
masses of all the products.
c. The mole ratio is needed only to solve problems in which the given is a mass in grams and the
unknown is an amount in moles.
d. A mole ratio can only be determined from a correctly balanced chemical equation.
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