Final answer:
The Bronsted-Lowry theory of acids and bases is also known as the Proton Theory. It states that an acid is any substance that can donate a proton and a base is any substance that can accept a proton.
Step-by-step explanation:
The Bronsted-Lowry theory of acids and bases is also known as the Proton Theory. According to this theory, an acid is defined as any substance that can donate a proton, while a base is defined as any substance that can accept a proton. This theory focuses on the transfer of protons (H+) between acid and base molecules.