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Equilibrium ­ Answers
1. In a dynamic equilibrium, the rates of the forward and reverse reactions are the same. Therefore, there is no
further change in the concentrations of the reactants and products.
2. The law of mass action states that when reactions reach equilibrium, the equilibrium concentrations of the…

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2+
E.g. Mg (s) + Cu (aq) Mg2+(s) + Cu(s) giving the Kc expression: K c = [
Mg ][Cu]
[Mg][Cu2+], which cancels to give:
2+
K c = [Mg ]
[Cu2+]
10. The partial pressure of a gas A in a mixture of gases is the pressure that the…

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