OBr⁻ is bromite ion and acts as the conjugate base of HOBr. It forms when HOBr donates its proton and loses its acidic properties.
A base is a substance that can accept protons (H+) in a chemical reaction.
The conjugate acid of a base is formed when the base accepts a proton. In this case, HOBr would be considered the conjugate acid if it gains an H+ from another species.
An acid is a substance that can donate protons (H+) in a chemical reaction.