The equation Na2S + H2SO4 -> 2NaHSO4 + H2S

1. Detailed information about the equation Na₂S + H₂SO₄ -> 2NaHSO₄ + H₂S:

The above chemical equation shows the reaction process between sodium sulfide (Na₂S) and sulfuric acid (H₂SO₄) to produce 2 new substances: sodium bisulfate (NaHSO₄) and hydrogen sulfide (H₂S).

2. Reaction conditions:

The reaction occurs under normal temperature and pressure conditions.

3. Reaction Process:

• Step 1: Sodium sulfide (Na₂S) and sulfuric acid (H₂SO₄) react with each other.
• Step 2: The reaction process occurs to produce two new substances: sodium bisulfate (NaHSO₄) and hydrogen sulfide (H₂S).

4. Phenomena occurring:

During the reaction process, the formation of hydrogen sulfide gas (H₂S), a gas with a distinctive foul smell, can be observed. This gas escapes from the solution, leaving behind a solution of sodium bisulfate.