Question

Explain dissociation and give 2 example's

Answer 1

Dissociation is the breaking up of a complex compound into simple compounds.

Dissociation of PCl5:
PCl5 -------> PCl3 + Cl2
Dissociation of water:
H2O --------> OH + H

Answer 2

dissociation means splitting into simpler forms.
1) 2H2O gives rise to H2+O2
2) Ca(OH)2 gives rise to Cao+H2