Nitrogen combines with oxygen to make nitrogen monoxide, $\text{NO}$, and nitrogen dioxide, $\text{NO}_2$. Nitrogen dioxide then reacts with water and also with hydroxide ions. $\text{N}_2(g) + \text{O}_2(g) \rightarrow 2\text{NO}(g)$ $2\text{NO}(g) + \text{O}_2(g) \rightarrow 2\text{NO}_2(g)$ $2\text{NO}_2(g) + \text{H}_2\text{O}(l) \rightarrow \text{HNO}_2(aq) + \text{H}^+(aq) + \text{NO}_3^{-}(aq)$ $2\text{NO}_2(g) + 2\text{OH}^-(aq) \rightarrow \text{NO}_2^{-}(aq) + \text{NO}_3^{-}(aq) + \text{H}_2\text{O}(l)$ What conclusions can be drawn from these equations alone?
- A$\text{HNO}_2$ is a strong acid.
- B$\text{HNO}_3$ is a weak acid.
- C$\text{NO}_2$ is a neutral gas.
- D$\text{NO}$ is a reducing agent.