Learn to balance chemical equations

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What is a balanced chemical equation?

When the number of atoms of different elements on both sides of a chemical equation are equal, then its is called a balanced chemical equation.

Why should chemical equations be balanced?

Chemical equations should be balanced because they give actual information about the equation and the actual number of the reactants and products. And also in order of comply with the Law of Conservation of Mass we balance a chemical equation.

Steps to balance a chemical equation 

Step 1: Write down the no. of atoms per element

Step 2: Start with balancing the element with maximum no. of atoms.

Step 3: Repeat step 2 until the left and right side of the elements are equal.  

Fill in the blank

(i) A complete chemical equation represents the reaction, the products and their physical states .......................... .

(ii) To balance a chemical equal we ..................... change the formula of the reactants or products in a chemical equation.

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