Question

Consider the equations below. (1) Fe2O3(s) → 2Fe(s) 3 2 O2(g) (2) Fe2O3(s) 3CO(g) → 2Fe(s) 3CO2(g) Which equation must be added to equation (1) to produce equation (2)? Upper C upper O (g) plus one half upper O subscript 2 (g) right arrow upper C upper O subscript 2 (g). 3 upper C upper O subscript 2 (g) right arrow 3 upper C upper O (g) plus StartFraction 3 over 2 EndFraction upper O subscript 2 (g). 3 upper C upper O (g) plus StartFraction 3 over 2 EndFraction upper O subscript 2 (g) right arrow 3 upper C upper O subscript 2 (g).

Answer 1

The equation is the representation of the chemical reaction. The reaction to be added to equation 1 to produce equation 2 is $\rm 3\;CO\;+\frac{1}{2}\;O_2\;\rightarrow\;CO_2$.

What is the chemical reaction?

The chemical reaction is the change in the reactant for the formation of the product.

The given equation 1 has been:

$\rm Fe_2O_3\;\rightarrow\;2\;Fe+2\;O_2$

The final reaction 2 has been:

$\rm Fe_2O_3+3\;CO\;\rightarrow\;2\;Fe+3\;CO_2$

The reaction with carbon to utilize the reactant oxygen of reaction 1 forming carbon dioxide, results in reaction 2.

Thus, the reaction that must be added will be:

$\rm 3\;CO\;+\frac{1}{2}\;O_2\;\rightarrow\;CO_2$

Thus, option A is correct.

Learn more about the chemical equation, here:

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