Here's why:

* Electrolytes are substances that conduct electricity when dissolved in water. This happens because they dissociate into ions (charged particles) when dissolved.

* Nonelectrolytes do not conduct electricity when dissolved in water because they do not form ions.

When salt dissolves in water, it breaks apart into its constituent ions: sodium ions (Na+) and chloride ions (Cl-). These ions are free to move throughout the solution, carrying an electrical charge, thus allowing the solution to conduct electricity.