Purdue University
Purdue University: Elements, Compounds & Mixtures
Provides definitions and characteristics of elements, compounds, and mixtures, and gives an animated image of each.
University of Alberta
The University of Alberta: Separation of Acids, Bases and Neutral Compounds
As a chemist, you will learn to deal with complex mixtures of many compounds. In this interactive activity, you will learn the basis of separations using acid-base extraction. In the virtual lab you will simulate an actual experiment and...