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Biology, 06.01.2020 12:31 areyonalloyd

Iron reacts with atmospheric oxygen to form iron oxide or ferric oxide. look at the chemical equation for this reaction: fe + o2 → fe2o3 this equation is unbalanced. which of the following is the correct balanced equation for this reaction?
4fe + 3o2 → 2fe2o3
3fe + 4o2 → 2fe2o3
2fe + 4o2 → 3fe2o3
3fe + 3o2 → 4fe2o3
4fe + 4o2 → 3fe2o3

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