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Vocab 2.2

Energy

TermDefinition
Energy The capacity to do work
Chemical reaction The process by which one or more substances change to produce one or more different substances
Reactant A substance or molecule that participates in a chemical reaction
Product A substance that forms in a chemical reaction
Metabolism The sum of a ll chemical processes that occur in an organism
Activation Energy The minimum amount of energy required to start a chemical reaction
Catalyst A substance that changes the rate of a chemical reaction without being consumed or changed significantly
Enzyme a type of protein or RNA molecule that speeds up metabolic reactions in plant and animals without being permanently changed or destroyed
Redox Reaction A reaction in which electrons are transferred between atoms; also known as an oxidation-reduction reaction
Oxidation Reaction A chemical reaction in which a reactant loses on or more electrons such that the reactant becomes more positive in charge.
Reduction Reaction A chemical change in which electrons are gained, either by the removal of oxygen, the addition of hydrogen, or the addition of electrons
Created by: GutzwillerL19