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ch.14 vocabulary

vocab science

QuestionAnswer
chemical reaction the process by which one or more substances change to produce one or more different substances.
precipate a solid that is produced as a result of a chemical reaction.
chemical formula a combination of chemical symbols and numbers to represent a substance.
chemical equation a represuntation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.
reactant a substance of molecule that participates in a chemical reation.
product the substance that formes in a chemical reaction.
law of conservation of mass the law that states that mass cannot be created or destroyed in ordinary chemical or physical changes.
synthesis reaction a reaction in whic two of more substances combine to form a new compound.
decompisition reaction a reaction in which a single compound breakes dowm to form two or more simplifer substances.
single-displacement reaction a reaction in which one element takes the place of another element or radical in a compund.
double-displacment reaction a reaction in which a gas, a solid, participate, or a molecular compound forms from the exchange of ions between two compunds.
exothermic reaction a chemical reaction in chich heat is released to the suroundings.
endothermic reaction a chemical reaction that requires heat.
law of conservation of energy the law that stated 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 reaction.
catalyce a substance that changes the rate of a chemical reaction without being used up or changed very much.
Created by: the cat
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