Final answer:
An acid dissociates in water to release hydrogen ions (H+) and anions.
Step-by-step explanation:
An acid dissociates in water to release hydrogen ions (H+) and anions. When an acid dissolves in water, it breaks apart into its component ions. For example, hydrochloric acid (HCl) dissociates into hydrogen ions (H+) and chloride ions (Cl-) in an aqueous solution.