It is CuF2 (where the 2 should be a suffix, but this site does not accommodate such niceties!)
FeF3
S2F6 , this is the correct formula for disulfur-hexa-fluoride
It is NiF2NiFl2
The formula for the magnesium ion is Mg^2+ and for the fluoride ion is F^-. Therefore, the formula for magnesium fluoride is MgF2.
The formula of strontium fluoride is SrF2. It consists of one strontium ion (Sr2+) and two fluoride ions (F-).
The copper(II) fluoride has the formula CuF2.
The copper(II) fluoride has the formula CuF2.
The correct chemical formula for aluminum fluoride is AlF3.
The chemical formula for hydrogen fluoride is HF.
The correct formula for boron fluoride is BF3, which indicates that one boron atom is bonded to three fluoride atoms.
Formula: CuI2
It is CuF2 (where the 2 should be a suffix, but this site does not accommodate such niceties!)
FeF3
The formula for zinc fluoride [note correct spelling] is ZnF2.
It would be CuF3 but this compound does not exist. Copper(II) fluoride, CuF2 exists, and K3CuF6 exists and contains copper III.
CuOH2
Ammonium fluoride is a correct chemical name ! The chemical formula is NH4F.