Yes, a strong acid reacts with a base to form a salt and water. The reaction between a strong acid and a base is called a neutralization reaction. In a neutralization reaction, the hydrogen ions (H+) from the acid combine with the hydroxide ions (OH-) from the base to form water (H2O). The salt is formed by the combination of the remaining ions from the acid and the base.

For example, when hydrochloric acid (HCl), a strong acid, reacts with sodium hydroxide (NaOH), a strong base, the following reaction occurs:

HCl + NaOH → NaCl + H2O

In this reaction, the hydrogen ions from HCl combine with the hydroxide ions from NaOH to form water. The remaining ions, sodium (Na+) and chloride (Cl-), combine to form sodium chloride (NaCl), the salt.

Neutralization reactions are important because they can be used to control the pH of a solution. By adding a strong acid or a strong base to a solution, the pH of the solution can be adjusted to a desired level.