Question

Balance the equation:

CH4 + O2 = CO2 + H2O


Choose the best answer from the options below:
A CH4 + 2 O2 = CO2 + 2 H2O + Energy
B CH4 + O2 = CO2 + H2O + Energy
C CH4 + 2 O2 = CO2 + 2 H2O
D CH4 + 4 O2 = CO2 + H2O
E CH4 + O2 = 2 CO2 + H2O

Answer 1

C

Balanced equation: CH4 + 2 O2 → CO2 + 2 H2O

Check atoms: C:1, H:4, O:4 on both sides. (Energy may be released in combustion but is not required to balance the equation.)