Is the dissolution of sodium chloride in water an example of chemical change?

1 Answer
anor277
Jul 8, 2017

#NaCl(s) stackrel(H_2O)rarrNa^+ + Cl^-#

Explanation:

#Na^+# and #Cl^-# are present in solution as their aquated ions, i.e. #[Na(OH_2)_6]^+# and #[Cl(H_2O)_(4-6)]^-# (of course, the water ligands are quite labile). Because this ionization clearly involves the formation of new substances, and the making and breaking of strong chemical bonds, this is a CLEAR example of #"chemical change."#

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