Answer: The equilibrium will shift towards forward direction if [tex]Mg(ClO_{4})_{2}(s)[/tex] is added as a drying agent to remove [tex]H_{2}O[/tex].
Explanation:
As per Le Chatelier's principle, any disturbance caused in an equilibrium reaction will tend to shift the equilibrium in a direction away from the disturbance.
According to the given situation, [tex]H_{2}O[/tex] is present on product side and when it is removed from the reaction on addition of [tex]Mg(ClO_{4})_{2}(s)[/tex] is then disturbance on product side is actually decreasing.
Therefore, we can conclude that the equilibrium will shift towards forward direction.