
Arrhenius theory
The Arrhenius Theory, proposed by Svante Arrhenius in the late 19th century, explains how acids and bases behave in water. According to this theory, an acid is a substance that increases the concentration of hydrogen ions (H⁺) in a solution, while a base increases the concentration of hydroxide ions (OH⁻). This framework helps us understand the reactions between acids and bases, leading to the formation of water and salts, and is foundational for studies in chemistry, biology, and environmental science, influencing many practical applications in everyday life.