Polar covalent. Si 1.90, S 2.58. SiS2 is polymeric - long chains with tetrahedral Si atoms andbridging S atoms.
It isn't ionic, the H and N are bonded by strong hydrogen bonds, a type of intermolecular force.
No its not polar
Polar
Nonpolar
Square planar
Tetrahedral
polar
If you think to ammonia molecule, this is polar.
Cl4 does not exist, but if CCl4 is meant: this is a nonpolar compound
H2O is a polar molecule; +H3O is even more so.
polar
polar
polar
H3O+- polar,asymmetrical (hydronium cation) PCl5 - polar asymmetrical (phosphorus pentachloride) H2S - polar, symmetrical (hydrogen sulfide) CF4 - polar symmetrical (carbon tetrafluoride)
Below plus 10 degrees Celsius
Non-polar Covalent Triple Bond