Which statement is true regarding strong acids?

The statement that strong acids completely dissociate into ions in solution is accurate. Strong acids, such as hydrochloric acid (HCl) or sulfuric acid (H₂SO₄), have the characteristic of dissociating entirely in water, meaning that all of the acid molecules break apart into their respective ions. For example, HCl dissociates completely into H⁺ and Cl⁻ ions. This complete dissociation results in a high concentration of hydrogen ions, contributing to a low pH value, typically below 3 for strong acids.

The nature of complete dissociation is crucial in defining a strong acid; it allows for greater conductivity in the solution due to the higher number of free ions compared to weak acids, which only partially dissociate. Understanding this property is essential for predicting the behavior of acids in various chemical reactions and solutions.