The formula for cobalt(III) chromate is Co2(CrO4)3.
The formula for Copper (II) Chromate is CuCrO4.The copper has a 2+ charge (Cu2+) and the chromate ion has a 2- charge ( (CrO4)2-).Since the charges balance each other out, therefore, we get CuCrO4.
Gold (III) nitrate has the formula Au(NO3)3.
Silver(I) chromate = Ag2CrO4
Formula: Au2O3
The formula for cobalt(III) chromate is Co2(CrO4)3.
The formula for Copper (II) Chromate is CuCrO4.The copper has a 2+ charge (Cu2+) and the chromate ion has a 2- charge ( (CrO4)2-).Since the charges balance each other out, therefore, we get CuCrO4.
That would be chromium(II) sulfate, but really, chromium mostly exists as Cr(III) or Cr(VI), which would change the formula.
first of all chromate and cloride are DIFFERENT. that being said, Fe2(CrO4)3
Gold (III) nitrate has the formula Au(NO3)3.
Ammonium chromate = (NH4)2CrO4
Cesium Chromate = Cs2CrO4
Silver(I) chromate = Ag2CrO4
Formula: AuF3
Formula: Au2O3
Formula: AuBr3
Formula: AuI3