With the 2 oxidation state.
NiCO3
NiCO3
(Ni)2CaCO3
The chemical formula for iron carbonate is FeCO3.
NCO3 is the chemical formula for nitrogen carbonate.
The chemical formula of calcium carbonate is CaCO3.
Silver nitrate chemical formula is: AgNO3. Sodium carbonate chemical formula is: Na2CO3.
The Chemical Formula for Nickel Sulphate is NiSO4.
NiCO3 is the chemical formula for nitrogen carbonate.
Rb2CO3 for rubidium carbonate
There is no compound by the name nickel(I) carbonate. Nickel(II) carbonate is however NiCO3
Assuming you meant calCium carbonate, than the chemical formula is CaCO3
The chemical formula for Barium Carbonate is BaCO3