What is a common pecipitate?

A common precipitate is a solid that forms when two solutions react chemically, leading to an insoluble product. An example is barium sulfate (BaSO₄), which precipitates when barium chloride (BaCl₂) reacts with sodium sulfate (Na₂SO₄). Precipitates are often used in qualitative analysis to identify the presence of specific ions in a solution.