The chemical formula of 3 gold atoms and one bromide atom could vary in writing. The word 'formula' could mean that it could be written to how it got to the result, or could be just the result. The most common formula writing for this is writing the 'G' with a small 3 next to the bottom right side of the 'G', and then adding a 'Br' after the 'G' with a small 3.
AgBr is silver bromide. Ag2Br does not exist. Hg2Br2 is mercury(I) bromide.
Formula: AuBr3
VBr3
Co(II)F3 The three needs to be small
Formula: (CH3COO)3Au
Gold (III) bromide has the chemical formula AuBr3. It usually exists as a dimer with the formula Au2Br6. Gold (III) bromide may be used as a catalyst for Diels-Alder reactions.
AgBr is silver bromide. Ag2Br does not exist. Hg2Br2 is mercury(I) bromide.
The chemical formula for cobalt(III) bromide is CoBr3
Formula: AuBr3
VBr3
The chemical formula of the compound formed between cobalt (III) and the bromide ion it would be CoBr3, if this compound exist !
Cr2O3 is the chemical formula for chromium (III) oxide
Co(II)F3 The three needs to be small
AlBr3 is the formula for aluminum (III) bromide.
The chemical formula of iron(III) bicarbonate is Fe(HCO3)3.The iron bromides are FeBr2 and FeBr3.
Formula: (CH3COO)3Au
Tin (III) bromide, if it exists, has the formula SnBr3.