| A | B |
| Acid | A substance that increases the hydronium-ion concentration of it's aqueous solution |
| Base | A substance that increases the hydroxide-ion concentration of it's aqueous solution |
| Acid anhydride | An oxide that reacts with water to form an acid. |
| Basic anhydride | An oxide taht reacts with water to form a solution containing OH- ions |
| Amphoteric | Capable of acting as an acid or base |
| Aqueous | In water; watery |
| Conjugate acid | The species formed when a base acquires a proton |
| Conjugate base | The species that remains after an acid has donated a proton |
| Diprotic | Pertaining to an acid capable of donating two protons per molecule |
| Electron-pair acceptor | an acid |
| Electron-pair donator | a base |
| hydronium ion | A hydrated proton |
| Litmus | A dye extracted from litchens used as an acid-base indicator |
| Monoprotic | Pertaining to an acid capable of donating one proton per molecule |