Here's the balanced chemical equation:
ZnCl₂(aq) + (NH₄)₂S(aq) → ZnS(s) + 2NH₄Cl(aq)
Explanation:
* Zinc chloride (ZnCl₂) and ammonium sulfide ((NH₄)₂S) are both soluble ionic compounds, so they exist as ions in solution.
* The reaction involves a double displacement or metathesis reaction, where the cations and anions switch partners.
* Zinc sulfide (ZnS) is an insoluble solid, so it precipitates out of the solution.
* Ammonium chloride (NH₄Cl) remains dissolved in solution.
Note: The reaction is usually carried out in an aqueous solution. The precipitate formed is often white and can be filtered off.
