3. The number of significant figures in an answer to a stoichiometry problem is determined only by
OA
OB
the number of significant figures in the mole ratio used to
solve the problem.
the number of decimal places in the molar masses of
substances in the chemical equation.
the number of significant figures of any measured quantities in
the problem.
the number of significant figures in the molar masses of
substances in the chemical equation.
Oc
OD