When the following equation is blanced with the lowest ratio whole number, coefficient the cofficient of CO2 is

C4H10(g) + O2 -> CO2(g) + H2O

any suggestions? This is not a home work answer site it is a home work help site.

If you can't balance the equation then balance the equation in the following order
balance C atoms on RHS
balance H atoms on RHS
balance O atoms on LHS

To balance a chemical equation, you want to ensure that the number of atoms of each element is equal on both sides of the equation. In this case, we need to balance the equation:

C4H10(g) + O2 -> CO2(g) + H2O

Let's start by counting the number of carbon (C) atoms on each side of the equation:
- Left side: 4 carbon atoms from C4H10
- Right side: 1 carbon atom from CO2

Since there are 4 carbon atoms on the left side and only 1 on the right side, we need to multiply the coefficient of CO2 by 4. This will make the number of carbon atoms equal on both sides.

So, the balanced equation becomes:

C4H10(g) + O2 -> 4CO2(g) + H2O

Now, the coefficient of CO2 in the balanced equation is 4.