Each reation releases or absorbs a very large amount of energy per atom. a. chemical and nuclear reactionb. chemical reactions. c. no reaction d. nuclear reation

Option (D) is the correct answer.

Explanation:

A chemical reaction is defined as a reaction that involves exchange of electrons between the combining atoms. Not every chemical reaction releases or absorbs a very large amount of energy per atom.

On the other hand, a reaction that involves change in atomic nuclei of an atom either by splitting or combining of two atomic nuclei is known as a nuclear reaction.

For example,

Nuclear fission is a reaction in which a large nucleus splits by absorption of energy into two atomic nuclei. Nuclear fusion is a reaction in which two atomic nuclei combine together to result in the formation of a large atomic nuclei along with release of energy.

Each nuclear reaction releases or absorbs a very large amount of energy per atom.

Therefore, we can conclude that each nuclear reaction releases or absorbs a very large amount of energy per atom.  

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