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PS Chemistry 2

Physical Change Change affecting the form of a chemical substance, but not its chemical composition. Usually reversible by "ordinary" means.
Chemical Change A usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition
Single Replacement A + BC --> AC + B
Double Replacement AB + CD --> AD + CB
Decomposition AB --> A + B
Synthesis A + B --> AB
Catalyst A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
Inhibitor A substance that slows down the rate of a chemical reaction.
Concentration The amount of solute divided by the total amount of mixture.
Activation Energy The minimum amount of energy needed to start a chemical reaction.
Endothermic A reaction that absorbs thermal energy from the surroundings.
Exothermic A reaction that adds thermal energy to the surroundings
Reactants The substances that exist before a chemical reaction.
Products The substances that exist after a chemical reaction.
Chemical Reaction A process that produces a chemical change.
Enzyme A catalyst involved in living organisms.
Protease An enzyme that breaks down proteins.
Created by: MrGross



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