Balanced chemical equation for the decomposition of solid sodium sulfide in aqueous solution.

Na₂S (s) → 2Na⁺ (aq) + S²⁻ (aq)

Explanation:

We need to know:

What are decomposition reactions? Decomposition reactions are type of reactions in which a compound is broken down into two or more products. When a soluble substance or a compound is dissolved in water it forms an aqueous solution. When this happens the soluble compound such as ionic compounds ionizes to form ions. This is an example of decomposition reaction, since the ionic compound decomposes it ions making it. For example, sodium sulfide is an ionic compound that ionizes in water to form sodium and sulfide ions. That is;

Na₂S (s) → 2Na⁺ (aq) + S²⁻ (aq)