| | anything that has mass and takes up space |
|
| | a substance that cannot be separated or broken down into simpler substances by chemical means |
|
| | the smallest unit of an element that maintains the chemical properties of that element |
|
| | a group of atoms that are held together by chemical forces; the smallest unit of matter that can exist by itself and retain all of a substance’s chemical properties |
|
| | a substance made up of atoms of two or more different elements joined by chemical bonds |
|
| | a sample of matter, either a single element or a single compound, that has definite chemical and physical properties |
|
| | a combination of two or more substances that are not chemically combined |
|
| | a mixture in which the substances are not evenly distributed |
|
| | a mixture in which the substances are evenly distributed |
|
| | characteristics that can be observed without changing the identity of the substance |
|
| | the temperature and pressure at which a solid becomes a liquid |
|
| | the temperature and pressure at which a liquid becomes a gas |
|
| | the ratio of the mass of a substance to the volume of the substance |
|
| | the capacity of a substance to combine chemically with another substance |
|
| | how a substance changes into a new substance, either by combining with other elements or by breaking apart into new substances |
|
| | a change of matter from one form to another without a change in chemical properties |
|
| | a change that occurs when one or more substances change into entirely new substances with different properties |
|
| |
| |
