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

Dear Student

In a displacement reaction, a more reactive element replaces a less reactive element from a compound.
For Example:
CuSo4(aq) + Zn (s) → ZnSO4(aq) + Cu (s)
In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds.
For Example:
Na2SO4(aq) + BaCl2(aq) → BaSO4(s) + 2NaCl (aq)

Thanks