Question

What is the balanced chemical equation for the word equation below?

Iron and oxygen react to form iron III oxide.

Answer 1

4Fe + 3O₂ → 2Fe₂O₃

Step-by-step explanation:

Fe → ²⁺

O → ²⁻

But Iron III is Fe³⁺

So we have Fe³⁺ and O²⁻, the formula for the oxide must be Fe₂O₃ so the equation can be:

4Fe + 3O₂ → 2Fe₂O₃