Question

an element as any substance that cannot be decomposed into a further simple by a physical or chemical change. who defined it​

Answer 1

Answer:

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Explanation:

Elements are pure substance that cannot be broken down into simpler substances by chemical or physical means.  Each element has unique physical and chemical properties. A compound is a substance formed when two or more chemical elements are chemically bonded together.  In mixtures, the substances present are not chemically bonded together. Therefore, the