Zinc reacts with hydrochloric acid: \[ \mathrm{Zn}+2 \mathrm{HCl} \rightarrow \mathrm{ZnCl}_{2}+\mathrm{H}_{2} \] A student calculates her theoretical yield to be \( 8.04 \mathrm{~g} \). After completing her lab, she has produced \( 6.35 \mathrm{~g} \) of zinc chloride. What is her percent yield?