Answer
(a) Iron Oxide $Fe_{2}O_{3}$
(b) Water $H_{2}O$
(c) Hydrogen peroxide $H_{2}O_{2}$
(d) Ethane $C_{2}H_{6}$
(e) Propane $C_{3}H_{8}$
Work Step by Step
The compunds in this list are from various groups of chemmicals so before you name them you need to classify them. In this case (a), (b), (c)
are inorganic compounds because they do not have any carbon-carbon bonds while (d) and (e) are organic compounds because they have carbon-carbon and carbon-hydrogen bonds.
You then just follow the rules of nomenclature inorganic or organic based upon the type of compound.
