The equation representing sodium reacting with water is given below. $2\text{Na} + 2\text{H}_2\text{O} \rightarrow 2\text{NaOH} + \text{H}_2$ What is the volume of hydrogen gas, measured at r.t.p., made when $18.4\text{ g}$ of sodium reacts with excess water?
- A$9.6\text{ dm}^3$
- B$15.0\text{ dm}^3$
- C$19.2\text{ dm}^3$
- D$30.0\text{ dm}^3$