Shifts in Equilibrium Answers
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Consider the following chemical reaction in equilibrium. CH3COOH CH3COO–(aq) + H+(aq) What will happen to the chemical equilibrium if MgCl2 is added?
A
The chemical equilibrium of the system will be unaffected.B
The chemical equilibrium of the system will shift to the right to favor the forward reaction.C
The chemical equilibrium of the system will shift to the left to favor the reverse reaction.D
The chemical equilibrium of the system will be damaged irreversibly.2
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Consider the following chemical reaction at equilibrium. H2SO4(aq) 2H+(aq) + SO42–(aq) The addition of which compound will cause a shift in equilibrium because of a common ion effect?
A
NaClB
KNO3C
MgSO4D
FeCl33
Consider the following chemical equation in equilibrium. H2SO4(aq) 2H+ + SO42– What will happen to the chemical equilibrium if HCl is added to the system?
A
The chemical equilibrium will shift to the right.B
The chemical equilibrium will be lost permanently.C
The chemical equilibrium will not be affected.D
The chemical equilibrium will shift to the left.4
According to Le Chatelier’s principle, which statement is true?
A
The equilibrium constant is unchanged by temperature changes.B
The equilibrium constant changes with a change in temperature.C
The equilibrium constant increases with the concentration of reactants.D
The equilibrium constant decreases with the concentration of products.Did you find these answers helpful?
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