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Polar Covalent Compounds

Why is magnes...

Question

Why is magnesium (MgCl2) soluble in water but magnesium hydroxide (Mg(OH)2) insoluble?

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Solution

Dear Student,
Magnesium chloride is soluble into water but Mg(OH)₂ is not because charge density on chloride ion is more than hydroxide ion so MgCl₂ is more solvated than Mg(OH)₂.

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