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Chemistry

TermDefinition
Activation energy what is needed to start a chemical reaction
Arrow you read the arrow as yields in a chemical equation or formula
characteristics of a chemical reaction changes in energy or changes in properties
chemical change alter the chemical properties of matter
chemical equations a shorter, easier way to show chemical reactions
coefficient a number placed in front of a chemical formula in an equation
conservation of mass the amount of mass in a chemical reaction does not change
controlling rates of reaction concentration, temperature, surface area, catalysts, enzymes and inhibitors
decomposition reaction a compound breaks into simpler substances
endothermic reaction an observable change in energy that shows a chemical reaction took place
physical changes alter only the physical properties of matter
precipitate a solid that forms during a chemical reaction
products the materials you have after a chemical reaction
reactants the materials you have during a chemical reaction
replacement reaction one part of a compound is displaced by another substance
states of matter solid, liquid, and gas
subscripts the number of atoms in an element
synthesis reaction two substances combine to form a new compound
exothermic reaction an observable change in energy that shows a chemical reaction took place
Created by: 150007919
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