Question

Q. What are the pure substance according to the chemists . Elements and compounds are considered as a pure or impure. Why?​

Answer 1

Answer:

An element is a pure substance as it cannot be broken down or transformed into a new substance even by using some physical or chemical means. Elements are mostly metals, non-metals or metalloids. Compounds, on the other hand, are also pure substances when two or more elements are combined chemically in a fixed ratio.

Explanation:

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Answer 2

Answer:

Pure chemical substances

This means that nothing else was added to the orange juice or mineral water during manufacture. However, these substances are not pure to a scientist. In science, a pure substance contains only one element or compound. Mineral water is mostly water, but there are other substances mixed with it.