Ionic bonds are considered to be strong chemical bonds,yet ions disociate in water. Explain this apparent contradiction.
One ionic bond is very strong, much stronger than the bond that occurs between one of its corresponding ions and a water molecule. However, when the ions or dissociated in water, there are many water molecules that bond to each ion. The water molecules form what is known as a solvation sphere around each of the ions, where many water molecules surround one ion and encapsulate it. All of the weak water to ion bonds add up and the total energy of these bonds is actually higher than the energy of the single ionic bond.