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| Term | Definition |
|---|---|
| Physical change | a change of matter from to another without a change in chemical properies |
| chemical change | a change that occurs when one or more substance es change into entirely new substance with different properties |
| chemical reaction | the process by which one or more substance change to produce one or more different substances |
| precipitate | a solid that produced as a result of a chemical in solution |
| Combustion reaction | a chemical reaction that occurs when oxygen combines with another substance |