Question

Iron reacts with oxygen to produce iron oxide (rust). This reaction is represented in an equation as 4Fe + xO2 → 2Fe2O3. Identify the value of x that will balance the equation.

1
2
3
4

Answer 1

4Fe + 3O2 → 2Fe2O3.
When we add 3 with O2 then it will be 6 on both sides.And this is your answer to this problem.



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Answer 2

4Fe + 3O₂ → 2Fe₂O₃

In short, Your Answer would be Option C) 3

Hope this helps!.