In a chemistry lab, a student performs a titration experiment using hydrochloric acid (HCl) and sodium hydroxide (NaOH). The student indicates that the goal of this experiment is to determine the concentration of the unknown strong acid solution by neutralizing it with a strong base. During the experiment, the student notes the pH of the resulting solution at different points in the titration.

Which of the following statements correctly describes the behavior of strong acids and bases in aqueous solutions?