Name and Formula of Inorganic Molecules

Non-metallic elements combine to produce covalent compounds, that is, molecules in which the atoms are held together by covalent bonds.
But do you know how to name these molecules using IUPAC recommendations?
Can you write the formula for these molecules using IUPAC recommendations?

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If you are not an AUS-e-TUTE member, there are two "free-to-view" tutorials currently available:

Naming Binary Inorganic Non-metallic Compounds

Molecular Formula of Binary Inorganic Non-metallic Compounds