Final answer:
The overall equation is the sum of two chemical changes: 2 CO₂ (g) → 2 CO(g) + O₂(g). If we add the equations together, we get 2 C(s) + 2O₂(g) + 2 CO₂(g) → 2 CO₂(g) + 2 CO(g) + O₂(g).
Step-by-step explanation:
The overall equation you provided is the sum of two chemical changes. The equation is:
2 CO₂ (g) → 2 CO(g) + O₂(g)
If we add these two equations together by combining all the reactants together and all the products together, we get:
2 C(s) + 2O₂(g) + 2 CO₂(g) → 2 CO₂(g) + 2 CO(g) + O₂(g)