Preparing Soluble Salts Using Insoluble Reactants

In this video, the presenter explains how to prepare soluble salts using insoluble reactants. They use the example of zinc oxide as the insoluble base and demonstrate the steps involved in reacting it with an acid to produce zinc chloride and water. The excess base is filtered out, and the salt solution is then boiled to evaporate the water, leaving behind pure crystals of the salt. The technique can be used for other insoluble reactants, such as metal or metal carbonates.