Calcium sulfate is white in color.
Here's the balanced chemical equation for the reaction:
Na₂SO₄(aq) + CaCl₂(aq) → CaSO₄(s) + 2NaCl(aq)
Explanation:
* Sodium sulfate (Na₂SO₄) and calcium chloride (CaCl₂) are both soluble ionic compounds, meaning they dissolve in water to form ions.
* When these solutions are mixed, the calcium ions (Ca²⁺) from calcium chloride react with the sulfate ions (SO₄²⁻) from sodium sulfate.
* This reaction forms calcium sulfate (CaSO₄), which is an insoluble compound and therefore precipitates out of the solution as a solid.
* The remaining ions, sodium (Na⁺) and chloride (Cl⁻), remain in solution as sodium chloride (NaCl), which is soluble.
