This reaction is considered a combustion reaction.

N2 (g) + 3H2 (g) ? 2NH3 (g)
AgI ? Ag+ + I-, ?H = -15 kJ/mol
H2C2O4 + MnO4- + H2SO4 ? MnSO4 + CO2 + H2O
NaSCN ? Na+ + SCN-, ?H = 345 kJ/mol
C4H10 + O2 ? CO2 + H2O