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Characteristics of Chemical Equilibrium

If you have a...

Question

If you have a solution in equilibrium containing $C l^{-}$ ions and you added $N a C l$ to the solution, what is going to happen?

The reaction will shift to the left to compensate for the increased concentration of

C l^{-}

ions

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The reaction will become unbalanced and stay unbalanced

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Le Chatelier's principle says that nothing will happen

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N a^{+}

ions will be made so that concentrations of

N a^{+}

and

C l^{-}

even out

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Equilibrium will be restored

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Solution

The correct option is A The reaction will shift to the left to compensate for the increased concentration of $C l^{-}$ ions
If you have a solution in equilibrium containing $C l^{-}$ ions and you added $N a C l$ to the solution, the reaction will shift to the left to compensate for the increased concentration of $C l^{-}$ ions. This is in accordance with the Le Chatelier's Principle .
The Le Chatelier's Principle states that any change in a substance on one side of the equation, either in concentration, temperature, pressure or volume, results in an equilibrium shift to oppose the change until a new equilibrium is reached.

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If you have a solution in equilibrium containing Cl− ions and you added NaCl to the solution, what is going to happen?

If you have a solution in equilibrium containing $C l^{-}$ ions and you added $N a C l$ to the solution, what is going to happen?