How many oxygen atoms are present on the reactant side of the chemical equation #4Fe + 3O_2 -> 2Fe_2O#?

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How many oxygen atoms are present on the reactant side of the chemical equation #4Fe + 3O_2 -> 2Fe_2O#?

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Answer 1 · 2016-11-28T10:17:22

#4Fe(s)+3O_2(g)rarr2Fe_2O_3#

Explanation:

Clearly, there are #6# oxygen atoms on the left hand side of the equation; and, equally clearly, there are #6# oxygen atoms on the right hand side of the equation, as indeed there must be in a stoichiometrically balanced equation.

The oxidation of iron in structures is of special concern; see [here.](https://socratic.org/questions/how-are-redox-reactions-involved-in-corrosion?source=search)

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How many oxygen atoms are present on the reactant side of the chemical equation #4Fe + 3O_2 -> 2Fe_2O#?

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