ACID N BASED THEORY

There are so many methods to defining acids and bases.  Example Antoine Lavoisier, Humphry Davy, and Justus Liebig.  but  they did not definitions acid and base in theory. And then :

1. Svante Arrhenius, give definition of acid and base :

1. acids is produce H⁺ ions in aqueous solutions ( water )
2. bases is produce OH^- ions in aqueous solutions (water )

2. Johannes Nicolaus Brønsted - Thomas Martin Lowry

1. acids are proton donors
2. bases are proton acceptors

3. Gilbert Newton Lewis

1. acids are electron pair acceptors
2. bases are electron pair donors

1.