Question

Why is formation of salt solution a physical change? ​

Answer 1

Answer:

When you dissolve salt in water, the sodium chloride dissociates in Na+ ions and Cl- ions, which may be written as a chemical equation:

NaCl(s) → Na+(aq) + Cl-(aq)

Therefore, dissolving salt in water is a chemical change. The reactant (sodium chloride, or NaCl) is different from the products (sodium cation and chlorine anion).

Thus, any ionic compound that is soluble in water would experience a chemical change. In contrast, dissolving a covalent compound like sugar does not result in a chemical reaction. When sugar is dissolved, the molecules disperse throughout the water, but they do not change their chemical identity

Answer 2

Dissolving a solid in liquid such as table salt in water is a physical change.