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Chem. Sec. 2.3-2.4
Vocabulary
| Question | Answer |
|---|---|
| The simplest form of matter that has a unique set of properties | Element |
| A substance that contains two or more elements chemically combined in a fixed proportion. | Compound |
| A change that produces matter with a different composition than the original matter. | Chemical Change |
| A representation of an element with either one or two letters. | Chemical Symbol |
| The ability of a substance to undergo a specific chemical change. | Chemical Property |
| When one or more substances change into one or more new substances. | Chemical Reaction |
| A substance present at the start of a chemical reaction. | Reactant |
| A substance produced in a chemical reaction. | Product |
| A solid that forms and settles out of a liquid mixture. | Precipitate |
| States that in any physical change or chemical reaction, mass is conserved, mass is neither created nor destroyed. | The Law of Conservation of Mass |