2KCl + Na₃[Co(NO₂)₆] = K₂Na[Co(NO₂)₆]↓ + 2NaCl;
2K⁺ + 2Cl⁻ + 3Na⁺ + [Co(NO₂)₆]³⁻ = K₂Na[Co(NO₂)₆]↓ + 2Na⁺ + 2Cl⁻;
2K⁺ + Na⁺ + [Co(NO₂)₆] = K₂Na[Co(NO₂)₆]↓.
2KCl + Na₃[Co(NO₂)₆] = K₂Na[Co(NO₂)₆]↓ + 2NaCl;
2K⁺ + 2Cl⁻ + 3Na⁺ + [Co(NO₂)₆]³⁻ = K₂Na[Co(NO₂)₆]↓ + 2Na⁺ + 2Cl⁻;
2K⁺ + Na⁺ + [Co(NO₂)₆] = K₂Na[Co(NO₂)₆]↓.