The rate law for the reaction2h2(g) + 2no(g)  ⟶  n2(g) + 2h2o(g) is rate=k[h2][no]2.  what is the overall order of the reaction? 3247

The overall order of the reaction is 3.

The rate law is rate = k[H₂]¹[NO]².

The overall order is the sum of the exponents of the concentrations.

∴ Overall order = 1 +2 = 3.

The reaction is first order in [H₂], second order in [NO], and third order overall.

that's what i got you can count the number of atoms