Cupronickel is an alloy and does not have any exact chemical formula, although it is sometimes written as "CuxNi", indicating an unspecified ratio between copper and nickel atoms in the alloy.
The Chemical Formula for Nickel Sulphate is NiSO4.
the symbol for nickel is Ni
NiS
The chemical formula (not symbol) is NiBr2.
Formula: Ni(ClO)3
Formula: Ni(ClO)2
The formula is NiCl2.6 H2O.
The chemical formula of nickel silicate is NiSiO3.
== Since Nickel(III) has a +3 charge and Nitrate (NO3) has a -1 charge, the chemical formula for nickel(III) nitrate would therefore be Ni(NO3)3
NiCO3
Ni2S3
The most common nickel sulfide has the chemical formula NiS.