Carbon tetrachloride
The covalent name of C2H6 is ethane.
The covalent compound name for C3N4 is tricyanogen.
The covalent bond name for B2Si would be hepta. This is known to be the short term for it.
Sulfur trioxide
The name for the covalent compound CH4 is methane.
The name of the covalent compound CH4 is methane.
The name for the covalent compound IF7 is iodine heptafluoride.
The name of the covalent compound XeO3 is xenon trioxide.
The covalent compound name for SeF2 is selenium difluoride.
The covalent compound name for SCl2 is sulfur dichloride.
Fe3N2 is ferric nitride, and it is ionic, not covalent.
The name of the covalent compound Sil4 is tetrasiilane.