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30 March, 01:26

In the reaction of iron water shown below what coefficient must be placed before the iron to balance the reaction fe+4h2o fe3o4 + 4h2

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  1. 30 March, 01:46
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    Answer is: three.

    Unbalanced chemical reaction: Fe+4H₂O → Fe₃O₄ + 4H₂.

    Balanced chemical reaction: 3Fe+4H₂O → Fe₃O₄ + 4H₂.

    In balanced reaction, there is three iron atoms on the left and on the right, eight hydrogen atoms and four oxygen atoms on both side of chemical reaction.
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