Mendeleev
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Mendeleev · Reaction

Iron oxidation

Iron oxidation: balanced equation with an atom-by-atom conservation check.

Reaction
4Fe + 3O2 → 2Fe2O3
ElementLeftRight
O66
Fe44

Coefficients in front of formulas set the reaction proportions. They do not change the chemical formulas themselves.

An equation is balanced when every element has the same total number of atoms on the left and on the right.