Consider the chemical system: A(g) + 3 B(g)  ⇋  C (g)K = 6 x 1012   How do the equilibrium concentrations of the reactants compare to the equilibrium concentration of the product?Question 1Select one:a.Reactant and product concentrations have to be exactly equal at equilibriumb.You can't tell from the information given because of the stoichiometryc.Reactant concentrations are much lower, products dominate at equilibrium.d.Reactant and product concentrations are about the same order of magnitudee.Reactant concentrations are much higher, reactants dominate.

Consider the chemical system:2 NO(g) + Br2(g)  ⇋ 2 NOBr (g)K = 2.0  How do the equilibrium concentrations of the reactants compare to the equilibrium concentration of the product?Question 2Select one:a.You can't tell from the information givenb.They are much higherc.They have to be exactly equald.They are about the same order of magnitudee.They are much lower

TRUE OR FALSE: At equilibrium, the concentrations of reactants and products are equal.

A system can be said to be in chemical equilibrium when (Choose all correct answers -- there may be more than one!)The forward reaction goes faster than the reverse reactionProducts are made from reactants faster than products turn back into reactantsThe reverse reaction goes faster than the forward reactionProducts are made from reactants at the same rate that products are turned back into reactantsThe rates of the forward and reverse reactions are equal.Products are made from reactants slower than products turn back into reactants

What is known about the concentrations of the reactants and products in chemical equilibrium?Question 5Select one:a.There is more product than reactant over time.b.There is more reactant than product over time.c.They are equal over time.d.They are constant over time.

For the reaction:2 A (g) B (g) + C (g)at 900 ° C, Kc is 1.40 x 10 -3. If 0.780 mole of A (g) and 0.244 mole each of B (g) and C (g) are mixed in a1.00 liter container at 900 ° C, what are the concentrations of A, B, and C at equilibrium?