Answer: Al2(SO4)3 + 3BaCl2 –> 2AlCl3 + 3BaSO4
The given reaction is a double displacement reaction. In this reaction, Aluminium Sulphate is reacting with Barium Chloride where Aluminium displaces Barium to form Aluminium Chloride, and barium forms Barium Sulphate.
In this both are getting displaced from their salts. So, this type of reaction is called double displacement reaction. The balanced equation for the given reaction can also be written as:-
Aluminium sulphate + Barium chloride → Aluminium chloride + Barium sulphate