| A | B |
|---|
| chemical change | change that produces matter with different properties from the original matter |
| chemical property | ability of a substance to undergo a specific chemical change |
| chemical reaction | process by which one or more substances change into one or more new substances |
| chemical symbol | one or two letter representation for an element |
| compound | substance composed of two or more elements chemicallly combined in a fixed proportion |
| distillation | process used to separate a homogeneous mixture separating them by their boiling points or by allowing the vapor to escape leaving a solid residue |
| element | a material which contains only one type of atom |
| filtration | process used to separate a solid from a liquid in a heterogeneous mixtures where the liquid can pass shtough small holes but the solid cannot |
| gas | form of matter that takes both the shape and volume of its container |
| law of conservation of mass | in any physical or chemical change mass can neither be created or destroyed, it is conserved |
| liquid | form of matter that has an indefinite shape, flows, yet has a fixed volume |
| mass | measure of the amount of matter an object contains |
| mixture | a physical blend of two or more substances |
| physical change | properties of a material may change, but composition remains the same |
| physical property | quality of a substance that can be observed or measured without changing the substance’s composition |
| precipitate | a solid that forms and settles out of a liquid mixture |
| product | substance produced by a chemical reaction |
| reactant | substance(s) present at the start of a chemical reaction |
| solid | form of matter that has a definite shape and volume |
| solution | usually used to describe a liquid mixture in which the compoosition is uniform throughout |
| substance | matter that has a uniform and definite composition |
| volume | measure of the space occupied by an object |
| magnetism | can be used to separate iron from a mixture |
| centrifuge | separates materials of different densities by spinning |
| evaporation | can separate a solute from a solution |
| atom | the smallest particle an object can be divided into |
| dissolving | adding a soluble solid to a solute. The solid becomes a part of the liquid |
