Question

which of the following is not a pure substance a.element b.molecule c.compound d.mixture

Answer 1

by definition, a "pure substance" is one that has a constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods

Answer 2

So would it be d. mixture?

Answer 3

No. A mixture is combosed of two thngs and can be separated.

Answer 4

The only possible answer is element. It cannot be separated by physical means. Even if you break apart a cube of gold, it is still gold. You can melt it, boil it, still gold tho. Does tha tmake sense?

Answer 5

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