| A | B |
|---|
| Acid | Substance that donated or releases hydrogen ion when it ionizes in water |
| Adenosine Triphosophate ATP | Energy-storing and energy transering molecule found in all cells |
| Atom | Fundamental unit of an element |
| Base | Substance such as the hydroxyl ion that combines with hydrogen |
| Catalysts | Any substance that speeds up the rate of a chemial reaction |
| Compound | Substance composed of two or more chemical elements such as water |
| Covalent Bond | Bond or attraction formed by the sharing of electrons between atoms |
| Electrolyte | Compound that dissociates into ions when dissolved in water |
| Element | Substance composed of only one type of atom |
| Energy | Ability to perform work |
| Enzyme | Organic catalyst |
| Hydrogen bond | Weak intermolecular bond formed between hydrogen and a negatively charged atom such as oxygen or nitrogen |
| Ionic bond | Bond formed by the exchange of electons between atoms |
| Isotope | Atom that has the same number of protons and electrons but a different number of neutrons |
| Molecule | Chemical combination of two or more atoms |
| pH | A measure of the hydrogen ion concentration |
| Solution | Mixture in which the particles that are mixed together remain evenly distributed |
| Suspension | Mixture in which the large particles gradually settle to the bottom unless continuously shaken or agitated |
