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Science Ch 12 TTK

Science Ch 12 TTK Review

TermDefinition
catalyst a substance that increases reaction rate by lowering the activation energy of a reaction
coefficient a number placed in front of an element symbol or chemical formula in an equation
combustion a chemical reaction in which a substance combines with oxygen and releases energy
inhibitor a substance that slows, or even stops, a chemical reaction
reactant a starting substance in a chemical reaction
products a substance produced by a chemical reaction
law of conservation of mass law that states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical reaction
exothermic a chemical reaction that releases thermal energy
endothermic a chemical reaction that absorbs thermal energy
activation energy the minimum amount of energy needed to start a chemical reaction
Created by: 2018grellerj
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