Question

Write the balanced redox equation for: NO + Cu²⁺ ---> NO₃^- + Cu 

Answer 1

Solution:

Unbalanced redox equation: NO + Cu²⁺ → NO₃⁻ + Cu

Oxidation half-reaction:

NO + 2H₂O − 3e⁻ → NO₃⁻ + 4H⁺

Reduction half-reaction:

Cu²⁺ + 2e⁻ → Cu

Net reaction:

2NO + 4H₂O + 3Cu²⁺ → 2NO₃⁻ + 8H⁺ + 3Cu

Balanced redox equation: 2NO + 4H₂O + 3Cu²⁺ → 2NO₃⁻ + 8H⁺ + 3Cu

NO acts as reducing agent

Cu²⁺ acts as oxidizing agent