Science (8th Grade)
Chemical Reactions
The sample balanced methane combustion equation from the book is:
CH4 + O2 ® CO2 + H2O
CH4 + 2O2 ® CO2 + 2H2O
2CH4 + O2 ® CO2 + H2O
CH4 + 3O2 ® CO2 + 2H2O