Is salt dissolving in water a physical or chemical change?

Answer 1

Physical (not chemical) changes

NaCl(s) → Na+(aq) + Cl-(aq)

Added:

These are NOT chemical changes. In solid NaCl there are already Na+ and Cl- ions present in the (fully ionic)crystallic matrix. These ions are only separated by the water molecules. This is exactly what is called: 'dissolving'

Answer 2

Dissolving salt in water is a physical change, not a chemical change. The salt molecules remain the same chemically, but they disperse throughout the water, creating a homogenous solution.