Calcium carbide, $\text{CaC}_2$, reacts with water to make ethyne, $\text{C}_2\text{H}_2$, and calcium hydroxide. The reaction equation is given below. $\text{CaC}_2\text{(s)} + 2\text{H}_2\text{O(l)} \rightarrow \text{C}_2\text{H}_2\text{(g)} + \text{Ca(OH)}_2\text{(s)}$ What volume of ethyne is formed when $6\,\text{g}$ of water react completely with calcium carbide?
- A$4\,\text{dm}^3$
- B$8\,\text{dm}^3$
- C$36\,\text{dm}^3$
- D$72\,\text{dm}^3$