Question

what is a balanced chemical equation? why should chemical equations be balanced?​

Answer 1

A chemical equation needs to be balanced because a chemical reaction is just a rearrangement of atoms. Atoms themselves are neither created nor destroyed during the course of a chemical reaction. The chemical equation needs to be balanced to follow the law of conservation of mass.

Chemical reactions follow the law of conservation of mass. Chemical equations show this conservation, or equality, in terms of atoms. You have to balance the equation to make the number of atoms equal on each side of an equation.

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Answer 2

Explanation:

The representation of a chemical reaction in the form of substances is known as a chemical equation. The equation in which the number of atoms of all the molecules is equal on both sides of the equation is known as a balanced chemical equation.

Law of conservation of mass governs the balancing of a chemical equation. According to this law, mass can neither be created nor be destroyed in a chemical reaction and obeying this law total mass of the elements or molecules present on the reactant side should be equal to the total mass of elements or molecules present on the product side. If the chemical equation is not balanced law of conservation is not applicable.

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