Explain precipitate only form when two solutions are mixed Does precipitate only form when two solutions are mixed? Or could a solid and an aq solution produce a precipitate?

Explain precipitate only form when two solutions are mixed Does precipitate only form when two solutions are mixed? Or could a solid and an aq solution produce a precipitate?

Explain precipitate only form when two solutions are mixed
Does precipitate only form when two solutions are mixed? Or could a solid and
an aq solution produce a precipitate?

For example: Mg (s) + CuSO4 (aq) -> MgSO4 (aq) + Cu (s)

Does the Copper count as a precipitate in this reaction?