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Peer reviewedGilbert, George L., Ed. – Journal of Chemical Education, 1990
Presented are two demonstrations; "Heat of Solution and Colligative Properties: An Illustration of Enthalpy and Entropy," and "A Vapor Pressure Demonstration." Included are lists of materials and experimental procedures. Apparatus needed are illustrated. (CW)
Descriptors: Chemistry, College Science, Demonstrations (Educational), Higher Education
Peer reviewedGilbert, George L., Ed. – Journal of Chemical Education, 1990
Described are demonstrations designed to reveal the important "nonsolvent" properties of water through its interaction with a toy called "Magic Sand" and other synthetic silica derivatives, especially those bonded with organic moities. The procedures for seven demonstrations along with a discussion of the effects are presented. (CW)
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education
