What is a solution that reacts with both acids and bases to maintain a constant pH called?

Question

Quizplus · Accepted Answer

A buffer is a solution that can resist changes in pH when either an acid or a base is added to it. This is achieved by having a weak acid and its corresponding conjugate base or a weak base and its corresponding conjugate acid present in the solution. The buffer can neutralize excess hydrogen ions (H+) or hydroxide ions (OH-) to maintain a stable pH.

What Is a Solution That Reacts with Both Acids and Bases