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Chemical Reactions

Chapter 2 Terms

TermDefinition
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 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 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 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 a gas, a solid precipitate, or a molecular compound forms from the exchange of ions between two compounds
Exothermic Reaction a chemical reaction in which heat is released in 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 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 a substance that changes the rate of a chemical reaction without being used up or changed very much
Created by: maddymoo11
 

 



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