How do you balance these chemical equation?

o Fe2O3 + 3H2 → 2Fe + 3H2O
o 4NH3 + 5O2  → 4NO + 6H2O

Aren't they balanced?

no i don't think so

can you balacne theses

Ag2O -> Ag + O2
C6H6 +O2 -> CO2 + H2O
Al2O3 + C -> Al + CO2

The top two are balanced. I am wondering why you don't think so.

On the next, I will be happy to critique your work. You will get more out of it that way, rather than me doing if for you.

can you display how to do the first then i could catch on.

To balance a chemical equation, you need to make sure that the number of atoms of each element is the same on both sides of the equation. Here's how you can balance these chemical equations step by step:

1. Fe2O3 + 3H2 → 2Fe + 3H2O:
Start by looking at the number of atoms on each side of the equation. On the left side, there are two Fe atoms and three O atoms, while on the right side, there are two Fe atoms and three O atoms. So we don't need to balance iron (Fe) and oxygen (O) atoms.

However, on the left side, there are six hydrogen (H) atoms (3H2), while on the right side, there are three hydrogen (H) atoms (3H2O). To balance hydrogen, we need to double the hydrogen (H2) on the right side to match the six hydrogen atoms on the left side. The equation becomes:

Fe2O3 + 3H2 → 2Fe + 3H2O

2. 4NH3 + 5O2  → 4NO + 6H2O:
Again, start by comparing the number of atoms on each side of the equation. On the left side, there are four nitrogen (N) atoms, while on the right side, there is one nitrogen (N) atom. To balance nitrogen, we need to multiply the NO compound on the right side by four. The equation becomes:

4NH3 + 5O2  → 4NO + 6H2O

Now, let's look at oxygen (O). On the left side, there are ten oxygen (O) atoms (5O2), while on the right side, there are six oxygen (O) atoms (4NO + 6H2O). To balance oxygen, we need to multiply the NH3 compound on the left side by five. The equation becomes:

4NH3 + 5O2  → 4NO + 6H2O

Finally, we can check hydrogen (H). On the left side, there are 12 hydrogen (H) atoms (4NH3 + 6H2O), while on the right side, there are 12 hydrogen (H) atoms (6H2O). Hydrogen is already balanced.

The balanced chemical equation is:
4NH3 + 5O2  → 4NO + 6H2O