Identify why dissolving salt in water would be considered a physical change.

Dissolving salt in water may be considered a physical change because no change occurs in the electron shells of the sodium and chlorine atoms and no chemical reaction occurs between sodium chloride and its solvent (water).

Explanation:

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.