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Chemical Reaction

Chapter 14- Chemical Reaction Flashcards

TermDefinition
Chemical reaction happens when substances break apart or combine to form one or more new substances
Precipitate a solid substance that forms is a solution
Chemical formula a combination of chemical symbols and numbers to represent a substance
Superscript number that tells you how many atoms of an element are in a molecule
Chemical equation a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
Reactants a substance or molecule that participates in a chemical reaction
Products a substance that forms in a chemical reaction
Law of conservation of mass the law that states the mass cannot be created or destroyed in ordinary chemical and physical changes
Coefficient a number that is placed in front of a chemical formula
Decomposition reaction reaction in which a single compound breaks down to form two or more simpler substances
Single displacement reaction a reaction in which one element takes the place of another element in a compound
Double displacement reaction a reaction in which a gas, 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 to the surroundings
Endothermic reaction a chemical reaction that requires heat
Law of conservation of energy a law that states that energy cannot be created or destroyed but can be changed from one form to another
Activation of energy the minimum amount or energy required to start a chemical reaction
Inhabitor 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: cookiemonster786
 

 



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