PF5
P7F8
There is no correct name for this NON existing compound, sorry.But according to IUPAC nomenclature rules it would have been: penta-phosphor deca-oxide.But maybe you have mistyped the formula:Phosphorus pentoxide is a chemical compound with molecular formula P4O10, earlier thought to be P2O5, hence its old name (di)Phosphorus pentoxide
Molecular (more correct is covalent) compounds have covalent bonds; electrons are shared between two atoms.
The correct molecular formula for styrene isC6H5CH=CH2
SCl6. Since it is a binary molecular compound, for each atom in the molecule you show the correct number of each atom by a prefix, and hexa means 6. There is no point in using any prefix if there is just 1 atom.
none of these A+
IF5
More correct KCl is the formula unit of potassium chloride.
P2S5 is molecular. The molecular formula is P4S10. It structure is the same as the molecular form of P2O5, which is P4O10. The compound is normally called simply phosphorus pentasulfide, however a more correct name diphosphorus pentasulfide.
Two non-metals, such as carbon and oxygen, as well as HOFBrINCl (google it) and many others.
There is no correct name for this NON existing compound, sorry.But according to IUPAC nomenclature rules it would have been: penta-phosphor deca-oxide.But maybe you have mistyped the formula:Phosphorus pentoxide is a chemical compound with molecular formula P4O10, earlier thought to be P2O5, hence its old name (di)Phosphorus pentoxide
H2O?
C4h10
The formula unit of sodium chloride is NaCl; the atomic ratio Na/Cl is 1.Note that the expression molecular formula for NaCl is not correct.
octaedrique
"lii" is not a chemical compound that I am aware of, and I doubt that there are many other people that have heard of it either. If you meant "LiI", however, then I can help you out. The correct name for the compound would be Lithium Iodide. It may sound a bit strange, but all the other possible names are even more awkward. Remember, when you're giving the molecular formula for a compound, capitalization is everything! Co (Cobalt) is not the same thing as CO (Carbon Monoxide).
That would depend on what that compound is/is made from.
trigonal planar