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There are 3 steps to balance chemical equation. first, write the unbalance equation. second, balance the equation using LAW of CONSERVATION OF MASS, and Last, indicate the states of matter of the  reactants and product.
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A chemical equation is a theoretical or written representation of what happens during a chemical reaction. The law of conservation of mass states that no atoms can be created or destroyed in a chemical reaction, so the number of atoms that are present in the reactants has to balance the number of atoms that are present in the products. Follow this guide to learn how to balance chemical equations differently.

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