Answer to Question #93696 in Inorganic Chemistry for Shane Ballera

Question #93696
Salt is dissolved in water. What kind of process takes place into this? Physical or chemical?
Expert's answer

Dissolving salt is chemical process.

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.


1.      ThoughtCo [Electronic resource]. - Mode of access: – Date of access: 06.09.2019.

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