The total mass of elements present in reactants must be :

equal to the total mass of elements present in products

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more to the total mass of elements present in products

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less to the total mass of elements present in products

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none of above

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Solution

The correct option is B equal to the total mass of elements present in products
A balanced chemical equation has number atoms of each element equal on both sides. According to law of conservation of mass, mass can neither be created nor destroyed in a chemical reaction. To obey this law, the total mass of elements present in reactants must be equal to the total mass of elements present in products.

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