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Question
Balance the following equation:
\[\ce{Fe + H2O⇌Fe3O4 + H2}\]
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Solution
\[\ce{Fe + H2O⇌Fe3O4 + H2}\]
To make Fe3 multiply Fe by 3 on left and to make O4 multiply H2O by 4
∴ \[\ce{3Fe + 4H2O⇌Fe3O4 + 4H2}\]
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