Question

Which equation below is correctly balanced?

a
C7H14 + 7O2 -> 7CO2 + 7H2O



b
C7H14 + O2 -> CO2 + H2O

c
C7H14 + O2 -> CO2 + 7H2O

d
2C7H14 + 21O2 -> 14CO2 + 14H2O

Answer 1

[AI-generated answer — Bot GPT 3.5]

The correct balanced equation is d: 2C7H14 + 21O2 -> 14CO2 + 14H2O.