Answer:
4 moles CO₂ = 4 moles O₂
Step-by-step explanation:
The reaction equation is given as;
2C₂H₅OH + 7O₂ → 4CO₂ + 6H₂O
The incorrect mole ratio from the relationships shown is;
4 moles CO₂ = 4 moles O₂
Number of moles of CO₂ = 4
Number of moles of O₂ = 7
So, the right expression is;
4 moles CO₂ = 7 moles O₂