Question

Which substance cannot be separated by physical means or chemical means?

an element


a compound


a solution


a mixture

Answer 1

Answer:

an element

Explanation:

Any substance that contains only one kind of an atom is known as an element. Because atoms cannot be created or destroyed in a chemical reaction, elements such as phosphorus (P4) or sulfur (S8) cannot be broken down into simpler substances by these reactions. ... Each element is represented by a unique symbol.

Answer 2

: An Element

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