i) Name the types of bonds in each of the following
a) Methane. b) Sodium chloride
ii) Why do ionic compounds have high melting points?
a) Methane. b) Sodium chloride
ii) Why do ionic compounds have high melting points?
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Answer:
(a) the chemical bond present in methane is covalent bond
(b)The chemical bond present in sodium chloride (NaCl) is ionic bond
ii) High melting points in ionic compounds is due to strong electrostatic force between them. It is very hard to separate positive and negative ions in a crystal lattice.
Answer:
Explanation:
a) covalent
b) ionic
ii) because of the attractions between negatively charged actions and positively charged cation rhey form crystals of molecules which needscmore heat to convert to liquid