Question

What is an example of dissociation?

table sugar dissolving in water
table salt dissolving in water
hydrogen chloride dissolving in water
vegetable oil dissolving in water

Answer 1

Table salt dissolving in water

Step-by-step explanation:

NaCl(s) ⟶ Na⁺(aq) + Cl⁻(aq)

Sodium chloride is an ionic solid. When it goes into solution, the ions separate from the surface of the solid. The process is called dissociation.

A is wrong. In the solution process, the molecules simply separate from the surface of the crystal.

C is wrong. When HCl dissolves in water, it forms hydronium and chloride ions. The dissolution of covalent compounds in water to produce ions is called ionization.

D is wrong. Vegetable oil does not dissolve in water.