The chemical system of rubbery elasticity is presented. Several references are given from which to extract experiments and problems for students. (SA)

Presents a definition of problem solving and discusses process and stages. An outline is given of particular uses of problem-solving networks. (SA)

Emphasizes the importance of precisely defining symbols introduced in deriving relationships between experimental and/or theoretical quantities. An example of a rate constant in unimolecular reaction rate theory is given. (SA)

Presents a simple way to introduce Direct Methods program systems to solve phase problems in x-ray crystal structure determination. It is intended for the undergraduate chemistry student laboratory. (Author/SA)

The value of ethylene, as the organic chemical industry's most important building block, is discussed. The discussion focuses on the source of ethylene, its various forms and functions, and the ways in which the forms are made. (SA)

Presents an alternative approach to teaching Systematic Transition Metal Chemistry with the transition metal chemistry skeleton features of interest. The "skeleton" is intended as a guide to predicting the chemistry of a selected compound. (Author/SA)

Describes the new mini-courses in freshman chemistry at Central State University. Compared to the traditional course, it was found that there were fewer withdrawals and that more students were achieving higher grades. (SA)

Describes an exam question which challenges college freshmen, enrolled in chemistry, to derive temperature dependence of an equilibrium constant. The question requires cognitive response at the level of synthesis. (Author/SA)

Describes the development of a student-centered chemistry program, based upon the Interdisciplinary Approaches to Chemistry (IAC), designed for two kinds of students: those who are science-oriented and mathematically inclined and those who are not inclined towards mathematics and find theoretical discussions difficult. (Author/SA)

Antianxiety agents are discussed in terms of their effects on the brain and central nervous system. Formulas for some substances, commonly prescribed as sedatives, are given. Includes a discussion on the toxicity and side effects of the drugs. (SA)

Describes a self-paced high school chemistry program and its development over a 14 year period. Reviews the major evolution decisions resulting in the course as it is structured presently. (Author/SA)

Presents a recipe for the Nylon Rope Trick, which is considered to be one of the most spectacular demonstrations in chemistry. Materials for growing the polymer and some safety precautions are given. (SA)

Describes a learning project in analytical chemistry in which students are required to select instruments from the manufacturers' literature that would be suitable for a given analytical problem. Several examples are given. (SA)

Spectroscopic aspects of the triboluminescence spectra of three Lifesaver candies are discussed. Emphasis is placed on the experimental methods of measuring spectra and origins of the tribaluminescence. (SA)

Explains two approaches to the automatic arrest of a potentiometric titration. (SA)