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  Balanced chemical equations   According   to law of conservation of mass that mass can neither be created nor destroyed in a chemical reaction. It means to say that the total mass of the elements in the products side   of a chemical reaction to be equal to the total mass of the elements in the reactants side.     Here , the total number of atoms of each elements remains same before and after a chemical reaction.   Example :--   Zinc + Sulphuric acid        ➡         Zinc sulphate + Hydrogen Zn + H 2 SO 4   →   ZnSO 4       +H 2   Elements      number of atoms in reactants (LHS) Zn                    1 H                      2 S                      1 O                      4   Elements      number of atoms in products (RHS) Zn                    1 H                      2 S                      1 O                      4         Balance chemical equation :--                                                 The number of atoms of eac

  CHEMICAL EQUATION:--                                      A chemical equation is the symbolic representation of the substance that undergoes the chemical change during chemical reaction in which reactants and products are expressed in the form of symbols and formulae.   magnesium   +   oxygen      -------------- à               Magnesium Oxide   (reactants)                                                           (products)   Here, reactants are given on the left-hand side (LHS) And products are given on the right-hand side (RHS)   Reactants:--                      The substances that undergoe chemical change in the reaction are called as reactants. Here , reactants are written in the left hand sided (LHS).   Products:--                    The substance is formed during chemical reaction is known as the products. And the products are written in the right hand side (RHS).   Point to be noted that the arrow which is pointed towards the products and shows the