C3-8/3H8 + 5 O20 3 CIVO2-II + 4 H2O-II

This is an oxidation-reduction (redox) reaction:

3 C-8/3 - 20 e- 3 CIV (oxidation)

10 O0 + 20 e- 10 O-II (reduction)

Change the oxidation states