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Chem Unit 8

TermDefinition
Rate How fast something is happening
Products Substance that is produced in a chemical reaction
Reactants Substance that is consumed in a chemical reaction
Reaction Rate Change in concentration of reactants or products over time
Activation Energy Required to start a chemical reaction
Collision Theory Atoms,ions, and/or molecules must collide with each other in order to react
Concentration The amount of a given substance conatined within a given volume
Pressure Measures concentration of a gas
Surface Area More particles are available to collide/react
Temperature Measure of average kinetic energy of molecules in a substance
Catalyst Increases rate of a chemical reaction without being consumed by the reaction
Enzyme A biological(protein) catalyst
Chemical Equilibrium State in which the rate of the forward reaction is equal to the rate of the reverse reaction, no change in concentration of products or reactants
Reversible Reaction A reaction that can occur in both the forward and reverse directions
Le Chatlelier's Principle If a stress is applied to a system at equilibrium, the equilibrium will shift so as to tend to counteract the stress
Created by: boltrak
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