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ch 14
| Question | Answer |
|---|---|
| chemical reaction | the process by which one or more substances change to produce one or more different substance |
| precipitate | a solid that is produced as a result of a chemical reaction in a solution |
| chemical formula | a combination of chemical symbols and numbers to represent a substance |
| chemical equation | a rep. of a chemical reaction that uses symbols to show the relationship between the reactants and the products |
| reactant | a sub. or molecule that participates in a chemical reaction |
| product | the substance that forms in a chemical reaction |
| law of conservation of mass | the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes |
| synthesis reaction | a reaction in which two or more substances combine to form a new comound |
| decomposition reaction | a reaction in which a single compund break down to form two or more simpler substances |
| single-displacement reaction | a reaction in which one element or radical takes the place of another element or radical in a compound |
| double-displacement reaction | a reaction in which a gas, a solid precipates, or a molecular compound form the exchange of ions between two compounds |
| exothermic reaction | a chemical reaction in which heat is released to the surroundings |
| endothermic reaction | a chemical reaction that requires heat |
| law of conservation of energy | the law that states that energy cannot be created or destroyed but can be changes from one form to another |
| activation energy | the minimum amount of energy required to start a chemical reaction |
| inhibitor | a substance that slows down or stops a chemcial reaction |
| catalyst | a substance that changes the rate of a chemical reaction without being used up or changed very much |
Created by:
yamer
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