N2O and SF4 are molecular compounds, while Na2O and CaCl2 are ionic compounds.
This is because molecular compounds are composed of non-metals, while ionic compounds are composed of a metal and a non-metal.
Molecular compounds are compounds composed of molecules held together by chemical bonds. They are formed when two or more non-metals combine and form a covalent bond.
Ionic compounds are compounds composed of ions held together by electrostatic forces. They are formed when a metal and a non-metal combine and form an ionic bond.
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