The chemical equation AgNO3 + Na2S -> Ag2S + 2NaNO3

The chemical equation above can be converted into chemical symbols as follows:
AgNO₃ (white powder, or clear solution) + Na₂S(whitepowder -> , or clear solution) -> Ag₂S (black powder) + 2NaNO₃(whitepowder -> , or clear solution). Where, AgNO₃ is Silver nitrate, Na₂S is Sodium sulfide, Ag₂S is Silver sulfide, NaNO₃ is Sodium nitrate.

Reaction conditions:
The reaction can occur at room temperature and standard pressure. If solutions of AgNO₃ and Na₂S are mixed together, the reaction will occur immediately.

Reaction process:
When the two substances AgNO₃ and Na₂S come into contact with each other, they will react to form Ag₂S and NaNO₃. Ag₂S is a black, insoluble solid that will settle at the bottom. NaNO₃ is a water-soluble substance, so it will remain in the solution.

Phenomenon occurs:
When the two substances AgNO₃ and Na₂S react with each other, there will be a precipitation phenomenon of black Ag₂S, and the solution will become clear as NaNO₃ dissolves in water.