The conversation between human and AI assistant.
How do you balance a chemical equation?
What do we do about the unbalanced oxygen atoms?
We can solve this by adding a coefficient of 2 in front of O2, like this: 2H2 + 2O2 → 2H2O. Then we check the number of atoms again. On the left side, there are 4 hydrogen atoms and 4 oxygen atoms, which is equal to the number of atoms on the right side. Therefore, this equation is balanced.