How to Balance: Fe + O₂ → Fe₂O₃ | Iron + Oxygen → Ferric Oxide

What are the reactants in the chemical equation Fe + O2 → Fe2O3?

• Fe and O2

• Fe2O3

• Fe and Fe2O3

• O2 and Fe2O3

Before balancing, how many iron (Fe) atoms are on the reactant side and how many oxygen (O) atoms are on the product side in the equation Fe + O2 → Fe2O3?

• Fe: 1, O: 2

• Fe: 1, O: 3

• Fe: 2, O: 2

• Fe: 2, O: 3

To balance the iron (Fe) atoms in the equation Fe + O2 → Fe2O3, what coefficient should be placed in front of Fe on the reactant side in the first step?

• 1

• 2

• 3

• 4

What is the correct balanced chemical equation for the reaction of iron with oxygen to form iron(III) oxide?

• 2Fe + 3O2 → 2Fe2O3

• 4Fe + 3O2 → 2Fe2O3

• Fe + O2 → Fe2O3

• 4Fe + O2 → 2Fe2O3