Represent the following compounds:haucl4, tl2o, feo, fe2o3, cui, cuo, mno and mno2 by using stock notation.

The stock notation is used to represent oxidation number of metal by Roman numerals.

so first of all the oxidation number of each metal in the compound should be known

HAuCl4 → Au = 3

Tl2O → Tl = 1

FeO → Fe = 2

Fe2O3 → Fe = 3

CuI → Cu = 1

CuO → Cu = 2

MnO → Mn = 2

MnO2 → Mn = 4

These are the oxidation number of each metallic element

This cant be represented as stock notation as,

HAu(III)Cl4, Tl2(I)O, Fe(II)O, Fe2(III)O3, Cu(I)I, Cu(II)O, Mn(II)O, Mn(IV)O2

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