Balancing of Chemical Equations

In chemistry, a balanced equation ensures that the number of atoms of each element is equal on both sides of the reaction. This reflects the Law of Conservation of Mass, matter is neither created nor destroyed in a chemical reaction.  

Method of Balancing  

Step 1: Count Atoms

- Itemise and count the number of atoms of each element on the left‑hand side (reactants) and the right‑hand side (products).  

Step 2: Identify Unbalanced Elements 

- Determine which elements have unequal numbers of atoms on both sides.  

Step 3: Add Coefficients 

- Place coefficients (whole numbers) in front of reactants or products to balance the unbalanced elements.  

- Ensure that already balanced elements remain unaffected.  

Step 4: Correct Placement of Coefficients  

- Coefficients must always be written in front of reactants or products.  

- They should never be written as subscripts, since subscripts change the chemical identity of the compound.