Alice added sodium chloride to water and stirred the water for several minutes. Alice is most likely trying to demonstrate that ionic compounds

Sodium chloride is an ionic compound, and stirring it into water tests whether it dissolves. If the salt mixes into the water and is no longer visible, that shows ionic compounds can dissolve in water. This demonstrates that they can dissolve, not that they are hard, clear, or able to melt.

AI-written and checked against the verified answer.