Complete and balance the following half-reaction in acidic solution TiO2 (s) — Ti?- (aq) 4. 03-02-0 O O2 O3+ 4+ 1 1 2. 3 4. 5 6 7 8 9 0 0 02 1. O 16 I 0, 0. + (s) (0) (g) (aq) e- о H H OH H30- H2O Ti