Question

What is the difference between ionization and dissociation?

Answer 1

Ionization	Dissociation
Ionization is a process where neutral atom is converted to charged electrons either by loosing or gaining electrons.	Dissociation is the breaking down of complex compounds into simple atoms, molecules or ions.
The ionization process produces ions.	The dissociation process produces smaller ions from the bigger ions.
The ionization process occurs when an electron loses or gains the electron in an atom.	Dissociation occurs due to the addition of solvent and energy in the form of heat.
The ions are formed at the end of the ionization process.	Dissociation of compounds occurs to form atoms, ions, and molecules.
Example: Ionisation of HCl $$\begin{gathered} \mathrm{HCl}\left(\mathrm{aq}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)\to {\mathrm{H}}_3{\mathrm{O}}^{+}\left(\mathrm{aq}\right)+{\mathrm{Cl}}^{-} \\ \mathrm{Hydrochloric}\mathrm{Hydronium}\mathrm{Chloride} \\ \mathrm{acid}\mathrm{acid}\mathrm{acid} \end{gathered}$$	Example: Dissociation of Potassium phosphate ${\mathrm{K}}_3{\mathrm{PO}}_4\left(\mathrm{s}\right)\to 3{\mathrm{K}}^{+}\left(\mathrm{aq}\right)+{\mathrm{PO}}_4^{3-}\left(\mathrm{aq}\right)$