Question

What happens when solutions of sodium sulphate and barium chloride are mixed?
Give the reaction.

Answer 1

Double displacement reactions generally take place in aqueous solutions in which the ions precipitate and there is an exchange of ions. For example, on mixing a solution of barium chloride with sodium sulphate, a white precipitate of barium sulphate is immediately formed. These reactions are ionic in nature.

Answer 2

When sodium sulphate and barium chloride are mixed , they interchange their radicals thereby forming a thick white precipitate of barium sulphate and base sodium chloride.

Na2SO4 + BaCl2 gives BaSO4 + 2NaCl