Precipitation is the formation of a solid in a solution or inside another solid during a chemical reaction. The acid base reaction results in the formation of salt (neutral in nature) and water. An acid-base reaction occurs, when an acid reacts with equal quantity of base. Neutralization reactions are a specific kind of double displacement reaction. This results in the formation of product molecule.ĭouble displacement reactions can be further classified as neutralization, precipitation and gas formation reactions. The reactants changes into ions when dissolved in water and there is an exchange of ions in solution. The general equation which represents a double displacement reaction can be written as:ĭouble displacement reactions generally take place in aqueous solutions in which the ions precipitate and there is an exchange of ions.įor example, on mixing a solution of barium chloride with sodium sulphate, a white precipitate of barium sulphate is immediately formed. During this reaction, the cations and anions of two different compounds switch places, forming two entirely different compounds. The Theoryĭouble displacement reactions may be defined as the chemical reactions in which one component each of both the reacting molecules is exchanged to form the products. To perform a double displacement reaction using sodium sulphate and barium chloride solutions.
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