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Chemical Reactions
Term | Definition |
---|---|
Chemical Reaction | the process by which none or more different substances change to produce one or more different substances. |
Precipitate | a solid substance that is formed in a solution |
Chemical formula | a shorthand way way to use chemical symbols and numbers to represent a substance |
Chemical equation | Uses chemical symbols and formulas as a shortcut to describe a chemical reaction |
Reactant | The stating materials in a chemical reaction |
Product | |
Law of Conservation of mass | the law that states that mass cannot be created or destroyed in ordinary chemical reactions or chemical changes |
Synthesis reaction | a reaction in which two or more substances combine to form one new compound. |
Decomposition reaction | a reaction in which a single compound breaks 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 ions form two compounds exchanged places. |
exothermic reaction | a chemical reaction in which energy is released. |
endothermic reaction | a chemical reaction which energy is taken in |
law of conservation of energy | the law that states that energy cannot be created or destroyed but can be changed from to another. |
activation energy | the smallest of energy the molecules need to react |
inhibitor | a substance that slows down or stops a chemical reaction |
catalyst | a substance that speeds up a reaction without being permanently changed. |