Accumulation of sodium azide in copper or lead plumbing can result in the formation of copper or lead azide and an eventual explosion. Presents procedures to dispose of azide wastes. (GS)

Surveys the innovations that are occurring in chemical education and raises questions that must be answered to assure that innovation has not occurred at the expense of education quality. (GS)

Summarizes the various activities of the conference and presents abstracts of the symposia and contributed papers. (GS)

Presents abstracts of the plenary lectures and contributed papers of a conference that covered the following areas: laboratory organization, integrated laboratory, instructional aids and equipment, computers, and general chemistry laboratory. (GS)

Indicates that in explaining redox reactions the definition of oxidation and reduction should be in terms of oxidation number, not electron transfer. Presents reasons and examples for this approach. (GS)

Describes the case of a literature course which concentrates on readings concerned with certain aspects of drug use and a science course which analyzes the problems associated with such drug intake. (Author/GS)

Describes a laboratory experiment designed to merge the concepts and techniques of the analytical-organic-physical subdivisions and introduce the student to a decision-making situation. Presents a discussion of the use of the experiment in attaining these goals and provides typical data obtained by students. (GS)

Describes an experiment that enables the student to concentrate on the fundamentals of the non-ideal liquid-vapor equilibrium. Presents typical student data and suggests features which might be added to the experiment. (GS)

Reports a modification of a simple method previously described for determining enthalpies of sublimation and comments on some of the method's inherent limitations. (Author/GS)