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Chemical Reactions
Term | Definition |
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Chemical Reaction | The process by which one or more substances change to produce one or more different substances |
Precipitate | a solid that is produced as a result of a chemical reaction in solution |
Chemical formula | a combination of chemical symbols and numbers to represent a substance |
Chemical equation | A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products |
Reactant | a substance 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 chemical and physical changes |
synthesis reaction | a reaction in which two or more substances combine to form a new compound |
decomposition reaction | a reaction in which a single compound breaks down 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 precipitate, or molecular compound forms the exchange of ions between two compounds |
exothermic reaction | a chemical reaction in which heat is realesed 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 changed from 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 chemical reaction |
catalyst | a substance that changes the rate of a chemical reaction without being used up or changed very much |