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Chemical Reactions

Chapter 14

WordDefinition
chemical reaction a 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 a solution
chemical formula a combination of chemical symbols and numbers to represent a new substance
chemical equation representation of a chemical reaction that uses symbols to show the difference between the reactants and the products
reactant substance or molecule that participates in a chemical reaction
product substance that forms in a chemical reaction
law of conservation of mass a law that states mass cannot be created or destroyed in ordinary chemical and physical changes
synthesis reaction reaction in which two or more symbols combine to form a new compound
decomposition reaction reaction in which two or more substances combine to form a new compound
decomposition reaction reaction in which a single compound breaks down to form two or more simpler substances
single displacement reaction reaction in which one element or radical takes the place of another element or radical in a compound
double displacement reaction reaction in which a gas, solid, precipitate, or molecular compound forms from the exchange of ions between two compounds
exothermic reaction chemical reaction in which heat is released to the surroundings
endothermic reaction chemical reaction that requires heat
law of conservation of energy a law that states that energy cannot be created nor destoryed but can be changed from one form to another
activation energy minimum amount of energy required to start a chemical reaction
Created by: jlindsay
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