Question

Which is the next logical step in balancing the given equation?

3CO(g) + Fe2O3(s) Fe(s) + 3CO2(g)

A.Place the coefficient 2 in front of iron(III) oxide.
B.Place the coefficient 2 in front of iron(III) oxide.
C.Place the coefficient 2 in front of elemental iron.
D.Replace the coefficient 3 in carbon monoxide with 6.

somebody help pleaseeee ):

Answer 1

The answer is A
I hope that helps!

Answer 2

Answer:  C.  Place the coefficient 2 in front of elemental iron.

Explanation:   The given chemical reaction is

                 3CO(g) + Fe2O3(s) → Fe(s) + 3CO2(g)

As we can see that stiochiometric coefficient of Carbon is balanced and oxygen coefficient is also balanced. The atom left with unbalanced coefficient is Fe.

Thus By Placing the coefficient 2 in front of the elemental iron will lead to the balanced equation.

Thus the balanced equation can be written as -

                 3CO(g) + Fe2O3(s) → 2Fe(s) + 3CO2(g)