1. Na₂CO₃ (s) + CuCl₂ (s) == CuCO₃ (s) + 2NaCl (s)
2. Na⁺ (aq) + CO₃^2- (aq) + Cu²⁺ (aq) + Cl^- (aq) == CuCO₃ (s) + Na⁺ (aq) + Cl^- (aq)
3. 2Na⁺ (aq) + CO₃^2- (aq) + Cu²⁺ (aq) + 2Cl^- (aq) == CuCO₃ (s) + 2Na⁺ (aq) + 2Cl^- (aq)
4. CO₃^2- (aq) + Cu²⁺ (aq) == CuCO₃ (s)

6. Mixing Na₂CO₃ + CuCl₂ yields the following net ionic equation:

4. CO₃^2- (aq) + Cu²⁺ (aq) == CuCO₃ (s)