The result of combining an acid and a base is a neutralization reaction, which typically produces a salt and water. In this process, the acid donates protons (H⁺ ions), while the base donates hydroxide ions (OH⁻). When they react, they form water (H₂O) and an ionic compound known as a salt. Neutralization reactions are fundamental in chemistry and have applications in various fields, including medicine, environmental science, and industrial processes.