Common strong acids include:

The identification of common strong acids is an essential concept in chemistry, particularly when discussing acid-base reactions. Strong acids are substances that fully disassociate in solution, meaning they release all of their hydrogen ions into the solution, resulting in a high concentration of H⁺ ions.

Hydrochloric acid (HCl) is a classic example of a strong acid, commonly used in laboratory settings and industrial applications. Sulfuric acid (H₂SO₄) is also a strong acid; not only does it disassociate completely in its first step, but it also has a second dissociation step that is significant, making it one of the strongest acids available.

Together, HCl and sulfuric acid are widely recognized as common strong acids. Their complete dissociation contributes to their effectiveness in reactions and their presence in various chemical processes.

The other choices include acids that are either weak or not classified as common strong acids. Acetic acid, for instance, is a weak acid that only partially dissociates in solution, and phosphoric acid is a triprotic acid that does not fully disassociate in all of its ionization steps. Carbonic acid also acts as a weak acid due to its incomplete dissociation in aqueous solutions. Thus, they