Strontium metal may be obtained from strontium oxide, $\text{SrO}$, by reducing it with aluminium. One possible equation is shown. $\text{6SrO} + \text{2Al} \rightarrow \text{3Sr} + \text{Sr}_3\text{Al}_2\text{O}_6$ What is the greatest mass of strontium metal that could be formed when $100\,\text{g}$ of strontium oxide is reduced by this reaction?
- A$41.3\,\text{g}$
- B$42.3\,\text{g}$
- C$84.6\,\text{g}$
- D$169.2\,\text{g}$