Balance Equation
The balance equation is a chemical equation where the number of atoms of each element is the same on both sides of the equation. This is achieved by adjusting the coefficients of the reactants and products in the equation.

Steps to Balance Chemical Equation:
- Identify Reactants and Products: Start by writing down the chemical equation with reactants on the left side and products on the right side.
- Count Atoms: Count the number of atoms of each element present in the reactants and products.
- Adjust Coefficients: Add coefficients to the molecules to balance the number of atoms of each element. Remember, you can only change coefficients, not subscripts.
- Check and Repeat: After adjusting the coefficients, recheck to ensure that the number of atoms of each element is now balanced. If not, repeat the process until the equation is balanced.
- Example: Let's consider the unbalanced equation: H2 + O2 → H2O. To balance this equation, we need to add a coefficient of 2 in front of H2O to balance the number of hydrogen atoms. The balanced equation will be 2H2 + O2 → 2H2O.
By following these steps, you can easily balance chemical equations and ensure that the law of conservation of mass is upheld in chemical reactions.