Balance or burn bonus round

Balance or burn

1000

CH₄ + O₂ → CO₂ + H₂O

1, 2, 1, 2

2000

C₂H₆ + O₂ → CO₂ + H₂O

2, 7, 4, 6

3000

C₃H₈ + O₂ → CO₂ + H₂O

1, 5, 3, 4

4000

C₄H₁₀ + O₂ → CO₂ + H₂O

2, 13, 8, 10

5000

C₆H₁₂ + O₂ → CO₂ + H₂O

1, 9, 6, 6