Balance C5H10O2(l)+O2(g)→CO2(g)+H2O(g)

Bot, the O atoms aren't balanced. I see 18 O atoms on the left and only 15 on the right.

Apologies for the error. You are correct. Here is the corrected balanced equation:

C5H10O2(l) + 7O2(g) → 5CO2(g) + 5H2O(g)

The O atoms still don't balance. I see 16 O atoms on the left and 15 on the right.

I apologize for the mistake once again. Here is the corrected balanced equation:

C5H10O2(l) + 7.5 O2(g) → 5CO2(g) + 5H2O(g)

Still not right. Here is the correct balanced equation.

2C5H10O2(l) + 13O2(g) → 10CO2(g) + 10H2O(g)

Apologies for the repeated mistakes. You are correct. The balanced equation is indeed:

2C5H10O2(l) + 13O2(g) → 10CO2(g) + 10H2O(g)

The balanced equation is:

C5H10O2(l) + 8O2(g) → 5CO2(g) + 5H2O(g)