| A | B |
|---|
| chemical property | ability of a substance to undergo chemical reactions and to form new substances |
| compound | substance that can be separated into other substances only by chemical reactions |
| element | substance that cannot be changed into a simpler substance under normal lab conditions |
| heterogeneous mixture | a mixture that is not uniform in composition; its components are readily distinguished |
| homogeneous mixture | a mixture that is completely uniform in composition; its components are not distinguishable |
| kinetic energy | the energy an object has because of its motion |
| law of conservation of energy | energy is neither created nor destroyed in an ordinary chemical or physical process |
| law of conservation of mass | mass can be neither created nor destroyed in an ordinary chemical or physical process |
| liquid | a form of matter that flows, has a fixed volume, and takes the shape of its container |
| mass | the amount of matter that an object contains; the SI base unit of mass is the kilogram |
| matter | anything that takes up space and has mass |
| mixture | a combination of two or more substances that are not chemically combined |
| physical change | an alteration of a substance that does not affect its chemical composition |
| potential energy | the energy stored in an objectas a result of its position or composition |
| physical property | a quality of a substance that can be observed or measured without changing the substance's chemical composition |
| precipitate | a solid that separates from a solution |
| solid | matter which has a definite shape and volume |
| solution | a homogeneous mixture |
| substance | a sample of matter having a uniform and definite composition; it can be either an element of a compount |
| vapor | a substance in the gaseous state that is ordinarily (at room temperature) a liquid or solid |
