Acid-Base Reactions

Acids dissociate into H⁺ and lower pH, while bases dissociate into OH^- and raise pH; buffers can absorb these excess ions to maintain pH.

A Brønsted acid is any species capable of donating a proton; a Brønsted base is any capable of accepting a proton.

Acid-base titration can determine the concentrations of unknown acid or base solutions.

A gas evolution reaction is a chemical process that produces a gas, such as oxygen or carbon dioxide.