What are the methods of preparing insoluble salts?

Answer 1

Salts are prepared by a reaction between an acid and a base; the insoluble salt is a precipitate.

Answer 2

Insoluble salts can be prepared by mixing solutions of two soluble salts that react to form the insoluble salt through a precipitation reaction. Another method is to react a soluble salt with a soluble base or acid to form the insoluble salt. Alternatively, you can mix two solutions of soluble salts that have a common ion to reduce solubility and form the insoluble salt.