The Stock name would be chromium(III)+
The name formula for HCrO4 as an acid is chromic acid.
The chemical formula for chromic bromide is CrBr3. It consists of one chromium ion (Cr) and three bromide ions (Br).
Chromic Acid
If you mean Sn2+ it is known as Tin(II) ion in the stock system or stannous ion in the old naming system.
The Stock name would be chromium(III)+
The chromic ion is (CrO4)2-.
The name formula for HCrO4 as an acid is chromic acid.
A chromic ion, Cr3+, has a charge of +3 due to the loss of three electrons from a neutral chromium atom.
This is possible when the ion is Hydrogen chromate or HCrO4-
The chemical formula is Cr2(SeO4)3.
The chemical formula for chromic bromide is CrBr3. It consists of one chromium ion (Cr) and three bromide ions (Br).
Chromic Acid
If you mean Sn2+ it is known as Tin(II) ion in the stock system or stannous ion in the old naming system.
The name of HCr2O4 is dichromic acid.
The color of the reaction of 2-Methyl-2-propanol and chromic acid typically changes from orange to green as the chromium (VI) ion in chromic acid is reduced to chromium (III) during the oxidation of the alcohol.
The name of CuF2 in the Stock system is copper(II) fluoride.