Chemistry+Chapter+5

**Chemistry Chapter 5: Chemical Reactions**

Lesson 1: Observing Chemical Changes Lesson 2: Describing Chemical Reactions Lesson 3: Controlling Chemical Reactions

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 * Use quizlet.com to input the following vocabulary. Input each section individually into quizlet. Always title your quizlet Flashcard set the full title of the section (**Example**: //E&E 1.1 Living things and the Environment//). Quizlet can be used as a very effective studying tool for you prior tests and quizes.**

physical change chemical change reactant product precipitate exothermic reaction endothermic reaction chemical equation law of conservation of mass open system closed system coefficient synthesis decomposition replacement activation energy concentration catalyst enzyme inhibitor
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