Question

a chemist is studying an unknown substance and could break the substance into its elemental components using chemical means. based on this observation, how should the unknown substance be classified? impure substance solution mixture pure substance

Explanation:

Pure substances can be broken down into elemental components by chemical means. Impure substances, solutions, and mixtures are combinations of different substances and not in a form that can be broken down to elements in this context.

Answer:

pure substance