Question

substance cannot broke by chemical reaction​

Answer 1

Answer:

An element is a chemical substance made up of a particular kind of atom and hence cannot be broken down or transformed by a chemical reaction into a different element, though it can be transmuted into another element through a nuclear reaction.

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Answer 2

Answer:

An element is a chemical substance that is made up of a particular kind of atom and hence cannot be broken down or transformed by a chemical reaction into a different element. ... Compounds made primarily of carbon and hydrogen atoms are called organic compounds, and all others are called inorganic compounds.