Worksheet for assigning oxidation numbers to underlined elements in chemical compounds.
A worksheet titled "Assigning oxidation numbers to atoms in elemental form is zero," featuring rules for determining oxidation numbers and an example problem involving Fe₂S₃. The exercise section lists ten compounds with underlined elements, including FeO, Al₂Cl₃, CuI, FeBr₃, CoCl₃, Cr₂O₃, SnBr₄, PbO₂, Hg₂Cl₂, and Cr₂O₃, for students to assign oxidation numbers.