Question

1.Why do ionic compounds dissolve in water
2. Why covalent compounds don’t dissolve in water

Answer 1

1. Most of the ionic compounds are soluble in water because they dissociate into ions in water and the ions get surrounded by water molecules. Some carbonates, hydroxides and sulphides are exceptions as they are not soluble in water.

2. Covalent compounds lack this property od dissociation and hence can't dissolve in water.

Answer 2

hey kuruthiga!!!!!!!!!!!!!!

1.Water is a highly polar solvent. Water molecules can interact strongly with ions, forming a shell around them that also screens the ions from each other. An ionic compound will dissolve readily if the interaction energy between the ions and water is energetically  favorable compared to the solid salt.

2.Covalent compounds the bonds are not quite dissociative in solvents as there is no polarity developed in them so that a polar solvent can solvate them and help in dissociation. Water is a polar molecule but covalent molecules are generally non polar and it cannot solvate them as there is no attraction between the solvent and the molecule




hope it helps u!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:)