C5H12 + O2 ---> CO2 + H2O
There are five carbons on the left but only one on the
right, and on each side the carbon is in a single chemical species. Put
a 5 in front of the CO2 on the right hand side.
C5H12 + O2 ---> 5CO2 + H2O
There are twelve hydrogens on the left but only two on the right side,
and hydrogen is in a single species on each side. Put a 6 in front of the
H2O on the right hand side.
C5H12 + O2 ---> 5CO2 + 6H2O
Finally, there are only two oxygens on the left side but 16 of them
on the right hand side. So put a 8 in front of the O2 on the
left hand side.
C5H12 + 8O2 ---> 5CO2 + 6H2O
It's now a balanced chemical equation.
Please mark as brainliest...:)