Question
Sodium peroxide is a very powerful oxidizing agent. Balance the reaction of sodium peroxide with elemental iron to give sodium oxide and $\mathrm{Fe}_{3} \mathrm{O}_{4}$.
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\[ \text{Na}_2\text{O}_2 + \text{Fe} \rightarrow \text{Na}_2\text{O} + \text{Fe}_3\text{O}_4 \] Show more…
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Sodium commonly forms the peroxide, $\mathrm{Na}_{2} \mathrm{O}_{2},$ when reacted with pure oxygen, rather than the simple oxide, $\mathrm{Na}_{2} \mathrm{O},$ as we might expect. Sodium peroxide is fairly reactive. If sodium peroxide is added to water, oxygen gas is evolved, leaving a solution of sodium hydroxide. Write unbalanced chemical equations for the reaction of sodium with oxygen to form sodium peroxide and for the reaction of sodium peroxide with water.
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