What is the difference between displacement and double displacement reactions? Write equations for these reactions.

Explanation

In a displacement reaction, a more reactive element replaces a less reactive element from a compound
For Example : `CuSO_(4)(aq)+Zn(s) rarr ZnSO_(4)(aq) + Cu(s)`
In a double displacement reactions, two atoms or a group of atoms switch places to form new compounds
For Example : `Na_(2)SO_(4)(aq)+BaCl_(2)(aq) rarr BaSO_(4)(s)+2NaCl(aq)`.