Problem: The equilibrium-constant of the reactionNO2(g) + NO3(g) ⇌ N2O5(g)is K = 2.1 × 10−20. What can be said about this reaction?a. At equilibrium the concentration of products and reactants is about the same.b. At equilibrium the concentration of products is much greater than the concentration of reactants.c. At equilibrium the concentration of reactants is much greater than that of products.d. There are no reactants left over once the reaction reaches equilibrium.

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The equilibrium-constant of the reaction

NO2(g) + NO3(g) ⇌ N2O5(g)

is K = 2.1 × 10−20. What can be said about this reaction?

a. At equilibrium the concentration of products and reactants is about the same.

b. At equilibrium the concentration of products is much greater than the concentration of reactants.

c. At equilibrium the concentration of reactants is much greater than that of products.

d. There are no reactants left over once the reaction reaches equilibrium.

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