What is the combustion of cyclohexane C6H12?
When balancing combustion reactions, do the carbon and hydrogen first, then the oxygen last.
Step 1: 6 carbons on the left, so you need 6 CO2 on the right.
Step 2: 12 hydrogens on the left, so you need 6 HOH on the right.
Step 3: count the number of oxygen atoms on the right = 18
step 4: divide oxygen atoms on right by 2 to get number of oxygen molecules needed on the left.
18/2 = 9
Balanced equation is:
C6H12 + 9 O2 --> 6 CO2 + 6 HOH