Water (H₂O) is a polar molecule, meaning it has a partial positive charge on one side and a partial negative charge on the other side.
When water dissociates, it breaks apart into ions. This process is known as autoionization or self-ionization.
The dissociation of water can be represented by the chemical equation:
In this equation, water dissociates into a hydrogen ion (H⁺) and a hydroxide ion (OH⁻).
Understanding the dissociation of water is crucial for studying acid-base chemistry, as the concentration of H⁺ and OH⁻ ions determines the pH of a solution.