Question

Balance the equation -

Fe + H₂O to form Fe₃O₄ + H₂

Answer 1

Reaction is:
Fe + H₂O $\to$ Fe₃O₄ + H₂

1) First balance atom other than H and O, so balance Fe
3Fe + H₂O $\to$ Fe₃O₄ + H₂

2) Then go for O
3Fe + 4H₂O $\to$ Fe₃O₄ + H₂

3) Lastly balance H
3Fe + 4H₂O $\to$ Fe₃O₄ + 4H₂
Now, all atoms are balanced.

Thus, Balanced equation is:
3Fe + 4H₂O $\to$ Fe₃O₄ +4H₂