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Chemistry ll Vocab.
| Question | Answer |
|---|---|
| matter | the material of the universe |
| atoms | the smallest division of mater that cannot be divided into smaller subsections |
| compounds | can be broken down into elements by chemical processes |
| molecule | a bonded collection of two or more atoms of the same or different elements |
| elements | simpler substances by chemical or physical means |
| solid | a substance in which volume and mass are definite and the particles vibrate |
| liquid | a substance in which particles slide across each other; definite mass but no definite volume |
| gas | substance where particles move freely; no definite volume or mass |
| physical properties | properties that can be observed without changing its chemical make-up |
| chemical properties | properties that can be observed, but the chemical make-up is changed |
| physical change | where a substance phase of matter only changes; not its chemical make-up |
| mixture | when two or more substances are physically combined |
| alloy | subsance that contains a mixture of elements and has metallic properties |
| pure substance | substance without a constant composition |
| homogeneous mixture | mixture where the appearance of the mixture looks the same throughout |
| solution | homogeneous mixture |
| heterogeneous mixture | mixture where the different parts can be identified |
| distillation | a mehod for separating the components of a liquid mixture that depends on differences in the ease of vaporazation of the components |
| filtration | method for seperating the components of a mixture containing a solid and a liquid |
Created by:
hollismith
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