Here's the balanced chemical equation for the reaction of aqueous calcium chloride (CaCl₂) with sodium carbonate (Na₂CO₃):

CaCl₂(aq) + Na₂CO₃(aq) → CaCO₃(s) + 2NaCl(aq)

Explanation:

* Reactants:

* CaCl₂(aq): Aqueous calcium chloride (dissolved in water)

* Na₂CO₃(aq): Aqueous sodium carbonate (dissolved in water)

* Products:

* CaCO₃(s): Solid calcium carbonate (the precipitate)

* 2NaCl(aq): Aqueous sodium chloride (remains dissolved in water)

Key points:

* Precipitate formation: The reaction forms a solid precipitate, calcium carbonate (CaCO₃), which is insoluble in water.

* Balancing: The equation is balanced with coefficients to ensure that the same number of atoms of each element appears on both sides of the equation.

* (aq): Indicates that the substance is dissolved in water (aqueous solution).

* (s): Indicates that the substance is a solid.