How can magnesium hydroxide be separated from the calcium chloride solution?

Magnesium hydroxide can be separated from a calcium chloride solution through precipitation. By adding a strong base, such as sodium hydroxide (NaOH), to the solution, magnesium ions will react to form insoluble magnesium hydroxide, which can be filtered out. The remaining calcium chloride in the solution remains dissolved, allowing for the selective removal of magnesium hydroxide. This process effectively isolates magnesium hydroxide from the calcium chloride solution.