Answer:
C = 10
Step-by-step explanation:
Given data:
Moles of O₂ = 35 mol
Moles of C₂H₆ react = ?
Solution:
Chemical equation:
2C₂H₆ + 7O₂ → 6H₂O + 4CO₂
Now we will compare the moles of O₂ with C₂H₆.
O₂ : C₂H₆
7 : 2
35 : 2/7×35 = 10 mol
Option C is correct.