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Chemistry, 18.10.2019 06:30 mayamcmillan11

Plz quick
which of these equations shows rust, fe2o3, forming when oxygen, o2, reacts with iron, fe?

2fe2o3 + 4fe → 3o2

4fe → 3o2 + 2fe2o3

3o2 + 4fe → 2fe2o3

2fe2o3 → 3o2 + 4fe

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