What is the chemical formula for the compound formed between vanadium(iii) and the bromate ion?

Explanation:

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In this case, vanadium is specified with +3 as its oxidation state, however it is stated that vanadium is combined with the bromate ion, which according to the IUPAC rules, accounts for bromine's last oxidation state, that is +5, in such a way, we build up the bromate ion forming the bromic acid shown below:

Such bromate comes from the bromic acid's anion, this is , thus, the required formula of the vanadium (III) bromate turns out into:

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