$2\mathop{N}\limits^{+2}O + {\mathop{O}\limits^{0}}_2 \xrightarrow{\quad t^\circ \quad} 2\mathop{N}\limits^{+4}{\mathop{O}\limits^{-2}}_2$
- Chất oxi hóa: $O_2$
- Chất khử: $NO$
- Quá trình oxi hóa: $\mathop{N}\limits^{+2} \longrightarrow \mathop{N}\limits^{+4} + 2e\qquad \Bigg| \,\,×2$
- Quá trình khử: ${\mathop{O}\limits^{0}}_2 +4e \longrightarrow 2\mathop{O}\limits^{-2}\qquad \,\,\,\,\Bigg| \,\,×1$
