How can you balance this equation?

Question

C(2)H(6) + O(2) ---> CO(2) + H(2)O

Answer 1

The answer is 2C2H6 + 7O2 ———- 4CO2 + 6H20.

"most important thing about balancing equations is balancing the odd atoms first such as carbon, C in this case

balance 2 C on right because there’s already 2 C on left

this gives CO2 -> 2C02

next u balance hydrogen, H on the right because there is 6 on the left by H2O -> 3H2O

always balance oxygen O the last/last few because it can be easily balanced due to the O2 on the right, O2 -> 5/2O2

overall equation would look like,

C2H6 + 5/2O2 -> 2CO2 + 3H2O

in order to remove the fraction, multiply the entire equation by 2

C2H6 + 5/2O2 -> 2CO2 + 3H2O x2"

Quoted from Sim Seemin on Quora.