Answer:
4 C2H5 + 13 O2 -> 8 CO2 + 10 H2O
Step-by-step explanation:
What I do is I make a chart of how many elements the product side and reactant sides have:
Reactants-
2 C
5 H
2 O
Products-
1 C
3 O
2 H
It's easier to see how many coefficients are needed for the reaction to be balanced then. Hope this helped.