Chapter 6, Problem 51AP

Iron oxide ores, commonly a mixture of $\text{FeO}$ and ${\text{Fe}}_2{\text{O}}_3$ , are given the general formula ${\text{Fe}}_2{\text{O}}_3$ . They yield elemental iron when heated to a very high temperature with either carbon monoxide or elemental hydrogen. Balance the following equations for these processes.

m:math> Fe 2 O 4 ( s ) + H 2 ( g ) → Fe ( s ) + H 2 O ( g ) Fe 2 O 4 ( s ) + CO ( g ) → Fe ( s ) + CO 2 ( g )