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science
chapter 14 vocab
deff | 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 | a representation of a chemicl reaction that uses symbols to show the relationship between the reactants and the products |
reactent | a substamce or molecule that participates in a chemical reactions |
product | a subastance that forms in a chemical reaction |
synthesis reaction | a reaction in which two or more substances combine to form a new compound |
exothermic reaction | A chemical reaction in which energy is releaased |
endothermic reaction | a chemical reacation in which energy is taken in |
Law of conservation of energy | states that energy cannot be created or destroyed |
activation energy | the smallest amount of energy that moleculea need to react |
inhabitor | substance that slows down or stops a chemical reaction |
catalyst | substance that speeds up a reaction without being permanently changed |