Firstly, we apologize for the inconvenience, but there is no chemical compound named Cr2O3SO5. A compound may contain the elements Cr (Chromium), O (Oxygen), and S (Sulfur), but combining them to form Cr2O3SO5 is not consistent with chemical rules.
If you are trying to refer to a specific chemical compound, please provide us with more accurate information.
If you are trying to refer to two different compounds, Cr2O3 (Chromium trioxide) and SO5 (sulfur pentoxide), we can provide you with information on both.