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An agent that produces chemical reactions. Classified under: Nouns denoting substances. Hypernyms (chemical agent is a kind of...): agent (a substance that exerts some force or effect) Hyponyms (each of the following is a kind of chemical agent): active; active agent (chemical agent capable of activity)
A chemical substance[1] also known as a pure substance is a form of matter that has constant chemical composition and characteristic properties.[2] It cannot be separated into components by physical separation methods, i.e., without breaking chemical bonds.[3] Chemical substances can be chemical elements, chemical compounds, ions or alloys.