The charges with sodium chloride are all balanced-for every positive sodium ion, there is a corresponding negative chloride ion. Since its charges are balanced, how can sodium chloride be attracted to water, and vice versa?
A. This is not a matter of attraction. Sodium chloride dissolves in water because water provides a medium in which the individual sodium and chloride ions can disperse.
B. Hydrogen bonding in water allows the sodium chloride molecule to be attracted to the water molecule.
C. Dispersion forces come into play as the sodium chloride and water come into close proximity.
D. As a water molecule gets close to the sodium chloride, it can distinguish the various ions and it is, thus, attracted to an individual ion by ion-dipole forces.
Answer: D
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