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16 Cards in this Set
- Front
- Back
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collision model
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molecules must collide in order to react
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activation energy (Ea)
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the minimum energy required in order to cause a chemical reaction
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catalyst
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a substance that speeds up a reaction without being consumed
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enzyme
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a large molecule, usually a protein, which catalyzes biological reactions
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homogeneous reaction
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reaction involving reactants & products in the same state
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heterogeneous reaction
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reaction involving reactants & products in different states
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equilibrium
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the exact balance of two processes, one of which is opposite of the other
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chemical equilibrium
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a dynamic state where the concentrations of the reactants & products remain constant over time, as long as the conditions are not changed
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law of chemical equilibrium
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aA + bB <--> cC + dD
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equilibrium expression
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K= [C]c[D]d/[A]a[B]b
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equilibrium constant
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K
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equilibrium position
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a particular set of equilibrium concentrations of all reactants & products in a chemical system
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homogeneous equilibrium
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an equilibrium system in which all reactants & products are in the same state
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heterogeneous equilibrium
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an equilibrium system in which all reactants & products are in a different state
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Le Chatelier's principle
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if a change is imposed on a system at equilibrium, the equilibrium position will shift to reduce the effect of the change
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solubility product constant (Ksp)
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the constant for the equilibrium expression representing the dissolving of an ionic solid in water
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