Why does chemical equation need to be balanced?

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Solution

Chemical reactions should be balanced in order to obey the law of conservation of mass, which states that mass can neither be created nor be destroyed.
Hence, the total mass of substances before the chemical reaction should be equal to the total mass of reactants after the reaction .

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Similar questions

(a) What is a balanced chemical equation ? Why should chemical equations be balanced ?

(b) Aluminium burns is chlorine to form aluminium chloride $(A l C l_{3})$ . Write a balanced chemical equation for this reation.

(c) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas. Write a balanced chemical equation for this reaction.

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