1. Which of the following is true regarding the concentration of products, for a chemical reaction that is already at equilibrium, assuming no disruptions to the equilibrium? A. The concentrations of products will not change because there are no more reactants. B. The concentrations of products will not change because the limiting reagent is gone. C. The concentrations of products will not change because the forward and reverse rates are equal. D. The concentrations of products will change continually because of reversibility 2. The reaction [ 2 NO: = N:O4 ], in general terms, is: A. Irreversible B. Reversible

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