chemistry vocab
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16 terms
Terms | Definitions |
|---|---|
 pure substance | made only of one type of matter |
| element | made up of only one type of atom |
| compound | made up of two or more types of atoms chemically combined |
| mixture | combination of two or more substances that are not chemically bonded, separated using filtration freezing, boiling, distillation and decantation |
| homogeneous mixture | same uniform appearance |
| solution | small particle that doesn't settle down(homogeneous) |
| heterogeneous mixture | consists of visibly different substances |
| colloids | particle that settle down after certain period of time(heterogeneous) |
| suspension | particle that settles down immediately(heterogeneous) |
| chemical change | when substances change into something new, heating, changes melting or freeing point |
| physical change | internal change composition of matter |
| intensive properties | density, color, boiling down or purified by physical means, fixed composition |
| extensive properties | mass and volume depend on quantity |
| substances | cannot be further broken down or purified by physical means, fixed composition |
| compounds | can be decomposed into simpler substances by chemical changes |
| elements | cannot be decomposed further |
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