I am currently balancing chemical equations. A few of them I am not sure if I correctly balanced or not, so could you check them over so I don't continue to do them wrong?

C3H8+O2 yields CO2+H2O. I balanced it as 1C3H8+5 O2+4H2O. If this isn't right, could you explain what's correct and why?

4Fe+3O2 yields 2 Fe2O3 is how I balanced Fe+O2. Is this right?

Thank you for your help.

C3H8+O2 yields CO2+H2O. I balanced it as 1C3H8+5 O2+4H2O. If this isn't right, could you explain what's correct and why?

I think you omitted a 3CO2. It should be C3H8 + 5O2 ==> 3CO2 + 4H2O
You don't need to place the 1 in front of C3H8. If we write C3H8, it is understood to be 1 unless some other coefficient is place there.

Certainly! Let's go through each chemical equation to check if they are balanced correctly.

1. C3H8 + O2 -> CO2 + H2O

To balance this equation, you need to make sure that the same number of each element is present on both sides of the equation.

For carbon (C), we have 3 atoms on the left side and 1 atom on the right side. To balance this, you will need to put a coefficient of 3 in front of CO2.

For hydrogen (H), we have 8 atoms on the left side and 2 atoms on the right side. To balance this, you will need to put a coefficient of 4 in front of H2O.

Finally, for oxygen (O), we have 2 atoms on the left side (from C3H8) and 2 atoms on the right side (1 from CO2 and 1 from H2O). So the oxygen is already balanced.

The balanced equation will be:

C3H8 + 5O2 -> 3CO2 + 4H2O

2. 4Fe + 3O2 -> 2Fe2O3

To balance this equation, let's check each element.

For iron (Fe), we have 4 atoms on the left side and 2 atoms on the right side. To balance this, you will need to put a coefficient of 2 in front of Fe2O3.

For oxygen (O), we have 6 atoms on the left side (3 from O2) and 6 atoms on the right side (2 from Fe2O3). So the oxygen is already balanced.

The balanced equation will be:

4Fe + 3O2 -> 2Fe2O3

So, both of your balanced equations are correct! It's important to remember that the coefficients in front of each molecule represent the number of moles or molecules needed to balance the equation. Checking the number of atoms of each element is a good way to make sure the equation is balanced properly.