| A | B |
| organic chem | study of carbon compounds |
| inorganic chem | study of non-carbon compounds |
| biochemistry | chemistry of life |
| chemistry | study of matter and changes in matter |
| matter | has mass and takes up space |
| mass | amount of matter in a substance |
| pure substance | can not be broken down any further, composed of only one element. |
| physical property | quality that can be observed without changing the substance |
| gas | gas are well separated with no regular arrangement, able to fit the properties of their container |
| solid | solid are tightly packed, usually in a regular pattern. |
| liquid | liquid are close together with no regular arrangement. |
| physical change | change w/o altering the material |
| mixture | physical blend of two or more substances |
| heterogeneous mixture | mixture NOT uniform in composition |
| homogeneous mixture | mixture that IS uniform in composition |
| phase | a part of a mixture with uniform composition |
| elements | simplest form of matter |
| compound | chemical blend of two or more elements |
| chemical reaction | substances are chemically changed |
| reactants | the starting chemicals in a reaction |
| products | the substances made in a reaction |
| chemical property | ability to undergo a chemical reaction |
| conservation of mass | mass is not created nor destroyed |