Question

Which material can be separated into their constituent substance only by chemical methods

Answer 1

Answer:

Compounds are substances composed of two or more elements chemically combined that can be separated into simpler substances only by chemical means. Water, for example, is a compound because pure water is composed of only H2O molecules.

Explanation:

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Answer 2

A pure substance can be either an element or a compound.

Compounds are substances composed of two or more elements chemically combined that can be separated into simpler substances only by chemical means. 

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