what is chemical reaction and chemical equation how does chemical equation given idea about atom , molecules and elements present in it.​

chemical reaction is described by a chemical A equation, an expression that gives the identities and quantities of the substances involved in a reaction. A chemical equation shows the starting compound(s)—the reactants—on the left and the final compound(s)—the products—on the right, separated by an arrow.In a chemical change, the molecules in the reactants interact to form new substances. ... When an equation of a chemical reaction is written, it is “balanced” and shows that the atoms in the reactants end up in the products and that no new atoms are created and no atoms are destroyed.

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explanation:

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the answer is 75.0%.