Explain the difference between a pure substance and a homogeneous mixture

Matter can be broken down into two categories: pure substances and mixtures.Pure substances are further broken down into elements and compounds. ... A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded

A pure substance is a element or mineral 
homogenous mixture is where all the solids dissolve equally throughtout a solution