Question

________ (Matter/Atom) can be classified chemically into pure substances and mixtures.

Answer 1

Matter can be classified in many ways. Matter can be broken down into two categories: pure substances and mixtures.

Pure substances are further broken down into elements and compounds. A pure substance is composed of one type of atom or molecule.

Mixtures are physically combined structures that can be separated into their original components.

Therefore, the correct answer is "Matter".