Balancing Equations (3)

Step 3: Balance half-reactions for charge.

Ox Zn ? Zn2+ + 2e-

Red e- + 2 H+ + VO2+ ? VO2+ + H2O

Step 4: Multiply by an appropriate factor to balance the electron transfer in OX. and RED.

Ox Zn ? Zn2+ + 2e-

Red 2e- + 4 H+ + 2 VO2+ ? 2 VO2+ + 2 H2O

Step 5: Add half-reactions

Zn + 4 H+ + 2 VO2+ ? Zn2+ + 2 VO2+ + 2 H2O

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