Describe ionic compounds on the basis of the fellow
properties:
) caystalline solid (b) Solubility in water
(thigh melting and boiling pernet.
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Answer:
(a) Three properties of ionic compounds:
(1) They have high melting and boiling points.
(2) They form crystal lattices and not molecules.
(3) They conduct electricity when dissolved in water or in molten state.
(b) Formation of NaCl:
Na⟶Na
+
+e
−
Cl+e
−
⟶Cl
−
⇒Na
+
+Cl
−
⟶NaCl
(c) In solid state, the ions in the compounds are not free to move and are held in crystal lattices. When in molten state, they become mobile and thus conduct electricity.
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