| A | B |
|---|
| chemical property | the ability of a substance to undergo chemical reactions and to form new substances |
| chemical reaction | the changing of substances to other substances by the breaking of bonds in the reactants and the forming of bonds in the products |
| chemical symbol | one or two letter representation of an element |
| compound | a substance that can be separated into simpler substances only by chemical means |
| distillation | a purification process used to separate liquids based on their different boiling points |
| element | a substance that cannot be changed into a simpler substance by ordinary laboratory means |
| gas | a substance that takes the shape and volume of its container |
| heterogeneous mixture | a misture that is not uniform in composition, its components are readily distinguished |
| homogeneous mixture | a mixture that is completely uniform in composition, it has only one phase |
| law of conservation of mass | in ordinary chemical processes, mass is not created or destroyed |
| liquid | a substance that thakes the shape of its container but has a fixed volume |
| mass | the amount of matter an object contains |
| matter | anything that takes up space and has mass |
| mixture | a physical blend of two or more substances |
| phase | one visible portion of a mixture |
| physical change | an alteration of a substance that does not change the actual composition of the substance |
| physical property | a quality of a substance that can be observed without changing what the substance is |
| product | a substsance formed in a chemical reaction |
| reactant | the starting substance(s) in a chemical reaction |
| solid | any form of matter that has a definite shape and volume |
| solution | a homogeneous mixture |
| substance | a sampe of matter with uniform composition - it can be an element or a compound |
| vapor | a substance in the gaseous state that is usually a liquid at room temperature |
