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Select all of the correct statements about reaction quotients and equilibrium constants from the choices below.
A) A reaction quotient equals the equilibrium constant at equilibrium.
B) If Q = K the reaction is already at equilibrium.
C) As concentrations change Q changes, whereas K stays constant.
D) K changes as temperature changes, but is independent of concentrations.
E) As a reaction progresses backwards toward equilibrium K is the lowest value Q attains.
F) As a reaction progresses forward toward equilibrium Q rises.
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