## Chemistry: The Molecular Science (5th Edition)

$NO_2$ and $SO_2$ are key producers of acid rain. $2 NO_2(aq) + H_2O(l) -- \gt HNO_3(aq) + HNO_2(aq)$ $SO_2 (aq) + H_2O(l) -- \gt H_2SO_3(aq)$ - $SO_2$ can produce $SO_3$, which produces $H_2SO_4$ $SO_2 + O_2 -- \gt SO_3 + H_2O -- \gt H_2SO_4$ - Since these products are acids, they are capable of changing the pH of the rain.