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# Equilibrium of the Oxidation of Iron in a Sealed Container

CHEM-RXG2GK

Consider the following reaction.

$$3\textrm{Fe}_{(s)}+4\textrm{H}_2\textrm{O}_{(g)} \rightleftharpoons \textrm{Fe}_2\textrm{O}_{3(s)}+4\textrm{H}_{2(g)}$$

A sample of $\textrm{Fe}_2\textrm{O}_3$ is in a sealed air-free container.

Which of the following substances will allow an equilibrium to be reached in the reaction?

Select ALL that apply.

A

$\textrm{Fe}$

B

$\textrm{H}_2\textrm{O}$

C

$\textrm{H}_2$

D

$\textrm{Fe}_2\textrm{O}_3$