The reaction of UO2^+ with hydrogen ion in aqueous solution
2 UO^+ + 4 H^+ → U^4+ + UO2^2 + 2 H2O
is second order in UO2^+ and third order overall.
Complete the rate law for this reaction in the box below. Use the form k[A]^m[B]^n... where '1' is understood for m, n... (don't enter I) and concentrations taken to the zero power do not appear.