Question: (a) How is a reaction quotient used to determine whether a system is at equilibrium? (b) If Qc > Kc, how must the reaction proceed

(a) How is a reaction quotient used to determine whether a system is at equilibrium?
(b) If Qc > Kc, how must the reaction proceed to reach equilibrium?
(c) At the start of a certain reaction, only reactants are present; no products have been formed. What is the value of Qc at this point in the reaction?

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