Question

What is a chemical reaction?

Answer 1

Any chemical reaction is a chemical process involving rearrangement of the molecular or ionic structure of a substance involving a physical change and formation of new compounds.

Answer 2

Answer:

Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.