Which equation is the correct one?
- A$\text{Cu}(s) + \text{O}_2(g) \rightarrow 2\text{CuO}(s)$
- B$\text{Mg}(s) + \text{H}_2\text{SO}_4(aq) \rightarrow \text{MgSO}_4(aq) + \text{H}_2(g)$
- C$\text{Na}(s) + \text{H}_2\text{O}(l) \rightarrow \text{NaO}(aq) + \text{H}_2(g)$
- D$2\text{Zn}(s) + 2\text{HNO}_3(aq) \rightarrow 2\text{ZnNO}_3(aq) + \text{H}_2(g)$