Strong acids are characterized by which of the following properties?

Strong acids are characterized by the property of completely dissociating in water. This means that when a strong acid is dissolved, it breaks down entirely into its constituent ions. For example, hydrochloric acid (HCl) dissociates completely into H⁺ ions and Cl⁻ ions when mixed with water.

This complete dissociation is what makes strong acids particularly effective at donating protons (H⁺ ions), thus resulting in a very low pH, typically less than 3, even at relatively low concentrations. Consequently, strong acids are excellent conductors of electricity in solution due to the high concentration of free ions produced.

The understanding of this property is crucial in both theoretical and practical chemistry, as it distinguishes strong acids from weak acids, which only partially dissociate in solution.