The balanced chemical equation for the reaction between sodium sulfate solution (Na₂SO₄) and calcium chloride solution (CaCl₂) is:

Na₂SO₄(aq) + CaCl₂(aq) → CaSO₄(s) + 2NaCl(aq)

Here's a breakdown:

* Reactants:

* Sodium sulfate (Na₂SO₄) - dissolved in water (aq)

* Calcium chloride (CaCl₂) - dissolved in water (aq)

* Products:

* Calcium sulfate (CaSO₄) - a white solid precipitate (s)

* Sodium chloride (NaCl) - dissolved in water (aq)

Explanation:

This reaction is a double displacement reaction. The positive and negative ions of the reactants switch places, forming new compounds.

* Sodium (Na⁺) ions from sodium sulfate combine with chloride (Cl⁻) ions from calcium chloride to form soluble sodium chloride (NaCl).

* Calcium (Ca²⁺) ions from calcium chloride combine with sulfate (SO₄²⁻) ions from sodium sulfate to form insoluble calcium sulfate (CaSO₄), which precipitates out of the solution as a white solid.

Balancing the Equation:

* To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation.

* The coefficient 2 in front of NaCl ensures that we have the same number of sodium, chlorine, and oxygen atoms on both sides.