| A | B |
|---|
| acid | substance which dissolves in water and contains hydrogen atoms that have lost electrons |
| base | substance which dissolves in water and contains oxygen-hydrogen groups that have gained electrons |
| composition | the elements from which a compound is made |
| hydrocarbons | organic compounds that contain only carbon and hydrogen |
| indicators | special group of compounds that change color when added to acids and bases |
| litmus | an indicator that is made from lichens |
| neutral | a compound that is neither an acid nor a base |
| organic compounds | compounds which contain carbon |
| oxide | compound which contain oxygen and only one other element |
| salt | formed along with water when an acid and a base combine in a chemical reaction |
