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Chapter 14 Chem.
Question | Answer |
---|---|
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 | uses chemical symbols and formulas as a shortcut to describe a chemical reaction |
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 and physical changes |
Synthesis reaction | is a reaction in which two or more substances combine to form one new compound |
Decomposition reaction | is a reaction in which a single compound breaks down to form two or more simpler substances |
single-displacement reaction | an element replaces another element that is a part of a compound |
double-displacement reaction | is a reaction in which ions from two compounds exchange places |
exothermic reaction | a chemical reaction in which hear is released to the surroundings |
enothermic 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 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 chemical reaction |
catalyst | is a substance that speeds up a reaction without being permanently changed |