Question

A chemist is studying an unknown substance. He can break it into its elemental components only by using chemical means. Based on this observation, how should the unknown substance be classified? impure; substance ,solution ,mixture, pure substance

Answer 1

It can be classified as a pure substance

This is because it can be broken into its elemental components only by using chemical means.

This substance must be a compound. A compound is a pure substance made up of two or more elements that can only be separated by chemical means.

It it could be separated y physical means then it would be a mixture/impure substance