• question_answer 3) Using stock notation, represent the following compounds $HAuC{{l}_{4}},T{{l}_{2}}O,F{{e}_{2}}{{O}_{3}},CuI,CuO,MnO$ and $Mn{{O}_{2}}$.

Formula Chemical name of compound Oxidation state of metal Stock notation $HAuC{{l}_{4}}$ Chloroauric acid $Au\left( +3 \right)$ $HAu\left( III \right)\text{ }C{{l}_{4}}$ $T{{l}_{2}}O$ Thallous oxide $Tl\text{ }\left( +1 \right)$ $T{{l}_{2}}\left( I \right)O$ $FeO$ Ferrous oxide $Fe\text{ }\left( +2 \right)$ $Fe\left( II \right)O$ $F{{e}_{2}}{{O}_{3}}$ Ferric oxide $Fe\text{ }\left( +3 \right)$ $F{{e}_{2}}\left( III \right){{O}_{3}}$ $CuI$ Cuprous iodide $Cu\text{ }\left( +1 \right)$ $Cu\left( I \right)\text{ }I$ $CuO$ Cupric oxide $Cu\left( +2 \right)$ $Cu\left( II \right)O$ $MnO$ Manganese oxide $Mn\text{ }\left( +2 \right)$ $Mn\left( II \right)O$ $Mn{{O}_{2}}$ Manganese dioxide $Mn\text{ }\left( +4 \right)$ $Mn\left( IV \right)\text{ }{{\text{O}}_{2}}$