Final answer:
The reactants of iron turning a brownish-red color are iron and oxygen. The equation for this reaction is 4Fe(s) + 3O₂(g) → 2Fe₂O₃(s). The products of the reaction are iron(III) oxide.
Step-by-step explanation:
The reactants of iron turning a brownish-red color are iron and oxygen. When iron reacts with oxygen in the presence of moisture and air, iron oxide forms, which gives iron a brownish-red color.
The equation for this reaction is:
4Fe(s) + 3O₂(g) → 2Fe₂O₃(s)
In this reaction, iron is being oxidized and oxygen is being reduced. The products of the reaction are iron(III) oxide.