When $65\,\text{g}$ of zinc reacts with $32\,\text{g}$ of sulfur, $97\,\text{g}$ of zinc sulfide is formed. When $65\,\text{g}$ of zinc reacts with $40\,\text{g}$ of sulfur, the mass of zinc sulfide formed is still $97\,\text{g}$. Which statement best accounts for this result?
- ASome of the zinc sulfide evaporates.
- BThe reaction rate is slow.
- CThe reaction stops before it is complete.
- DZinc is the limiting reactant.