What is the complete ionic formula for nickel ll chloride plus sodium carbonate?

The complete ionic formula for the reaction between nickel(II) chloride (NiCl₂) and sodium carbonate (Na₂CO₃) can be represented as follows:

[ \text{Ni}^{2+} (aq) + 2 \text{Cl}^- (aq) + 2 \text{Na}^+ (aq) + \text{CO}_3^{2-} (aq) \rightarrow \text{NiCO}_3 (s) + 2 \text{Na}^+ (aq) + 2 \text{Cl}^- (aq) ]

In this reaction, nickel(II) carbonate (NiCO₃) precipitates out of solution while sodium (Na⁺) and chloride (Cl⁻) ions remain in the aqueous phase.