Question

How do you balance `Fe+O_2->Fe_2O_3`?

Answer 1

`Fe(s)+3/2O_2(g) rarrFe_2O_3(s)`

Explanation:

Is this equation balanced? How would I remove the half coefficient? How important do you think this reaction is in the construction and maintenance of large steel structures, bridges, ships, and skyscrapers?

See this answer here also.