Which two acids are examples of weak acids?

Weak acids are those that do not completely ionize in water, meaning that only a fraction of the acid molecules dissociate to release hydrogen ions. Ethanoic acid, also known as acetic acid, is a prime example of a weak acid, as it partially dissociates in solution. Similarly, citric acid, found in citrus fruits, is another weak acid that only partially ionizes, making it less reactive compared to strong acids.

In contrast, hydrochloric acid and nitric acid are strong acids; they completely dissociate in water, releasing all of their hydrogen ions. Sulfuric acid is also a strong acid, particularly in its first dissociation step. While carbonic acid can act as a weak acid, its pairing with strong acids in other options makes it less relevant when identifying examples of weak acids alongside ethanoic and citric acids. Hence, the selection of ethanoic acid and citric acid successfully exemplifies weak acids.