## Chemistry: Principles and Practice (3rd Edition)

$Rate= k[NO_{3}][O_{2}]^{2}$
Recall that for a general reaction $aA+bB \rightarrow cC+dD$, $Rate= k[A]^{x}[B]^{y}$ where x and y represent the order with respect to the reactants A and B respectively. Therefore, rate law for the given reaction is $Rate= k[NO_{3}][O_{2}]^{2}$