Dissolving salt in water is it a temporary or permanent change
Answers
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 an example of 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 don't change their chemical identity.
dissolving salt in water is temporary change because it is reversible
the salt can be obtained back by various methods of filtration
for Example : by evaporation