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06-10-2017
Chemistry

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Fe3O4 + H2 ⟶ Fe + H2O, identify the coefficient of H2O in the balanced equation.

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07-10-2017

Balance Fe
Fe3O4 + H2→ 3Fe + H2O
Balance O
Fe3O4 + H2→ 3Fe + 4H2O
Balance H
Fe3O4 + 4H2→ 3Fe+4H2O
Coeff of H2O=4

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