Question

what is chemical reaction
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Answer 1

Answer:

A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another.

OR

A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products. Substances are either chemical elements or compounds.

Explanation:

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Answer 2

Answer:

A process that involves rearrangement of the molecular or ionic structure of a substance , as distinct from a change in physicak or chemical reaction

chemical reaction a. process in which one or more substance the reactants are converted to one or more different substance the product substance are either chemical substance elements .