Question

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

Answer 1

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)