Science (9th Grade)

Balancing Chemical Equations

Select the correctly balanced equation for burning ethane: C2H6 + O2 -> CO2 + H2O

2C2H6 + 7O2 -> 4CO2 + 6H2O
C2H6 + 5O2 -> 2CO2 + 3H2O
C2H6 + 3O2 -> 2CO2 + 3H2O
C2H6 + 6O2 -> 4CO2 + 6H2O