The equation CuSO4 + Na2S -> CuS + Na2SO4

1. Detailed information about the equation CuSO₄ + Na₂S -> CuS + Na₂SO₄:

This is a chemical reaction between copper (II) sulfate (CuSO₄) and sodium sulfide (Na₂S) to form copper sulfide (CuS) and sodium sulfate (Na₂SO₄). The reaction has the characteristic of a two-directional substitution reaction.

The chemical reaction is as follows:

CuSO₄ (aq) + Na₂S(aq) -> CuS(s) + Na₂SO₄(aq)

2. Reaction conditions:

The reaction occurs when the two reactants are mixed together under standard temperature and pressure conditions.

3. Reaction process:

When copper (II) sulfate (CuSO₄) and sodium sulfide (Na₂S) are mixed together, they will react and form copper sulfide (CuS) and sodium sulfate (Na₂SO₄).

4. Phenomena that occur:

CuSO₄ is blue. When reacting with Na₂S, the solution will turn black due to the presence of CuS.