| A | B |
|---|
| allotrope | any of two or more molecules of a single element that have different crystalline or molecular sturctures |
| anhydrous | compound in which all water has been removed, usually by heating |
| binary compound | compound that contains only two elements |
| deliquescent | substance that takes up enough water from the air that it dissolves completely to a liquid solution |
| distillation | method of separating substances in a mixture by evaporation of a liquid and subsequent condensation of its vapor |
| formula unit | simplest ratio of ions in a copound |
| hydrate | compound in which there is a specific ratio of water to ionic compound |
| hydrocarbon | an organic compound that consists of only hydrogen and carbon |
| hygroscopic | a substance that absorbs water molecules from the air to become a hydrate |
| inorganic compound | compound that does not contain carbon |
| molecular element | molecule formed when atoms of the same element bond together |
| molecular substance | substance that has atoms held together by covalent rather than ionic bonds |
| organic compound | compound that contains carbon; a few exceptions exist |
| oxidation number | charge on an ion or element |
| polyatomic ion | ion that consists of two or more different elements |
