Presents a detailed discussion on the chemistry of glass. Topics discussed include: natural glass, early history, modern glass composition, raw materials for glass melting, chemically modified glasses, modern glass forming, glass ceramics, and new developments in glass research. (BT)

Presents an historical review of the role of petroleum in world history and information on the chemistry of petroleum. It is suggested that petroleum chemistry be discussed since within the next two decades oil and gas will provide the major portion of U.S. energy. (Author/SA)

A discussion is presented of balancing oxidation-reduction equations that have multiple sets of balancing coefficients or confusing stoichiometry. (BB)

Catalysis is defined and discussed as the process relates to science history, chemical reactions, enzymes, industry, catalytic reactors, and catalyst preparation. (SA)

A historical review of the development of aromatic chemistry, including the Kekule formula, Huckel's Rule, polycyclic aromatics, and nonclassical aromatic compounds. (BB)

Describes the historical development of chemical formulas. (SL)

Describes the development and the composition of birth control pills. Explains the way the pill works, and other methods of contraception. (GA)

The history and definition of pH is presented along with sample calculations. (BB)

Discusses ways of teaching the mole concept in high school chemistry classes. Provides resource information on the mole and Avogadro's Number. Includes an explanation of four methods for measuring Avogadro's Number and instructions on how to use the mole. (MA)

Traces the formation of the concepts of acids and bases by describing theories ascribed to various scientists. (CP)

Reviews the chemistry of oxidation appropriate for inclusion in secondary school chemistry. (SL)

Reviews determination of atomic weights. (SL)

Second part of an article reviewing structural formulas. (SL)

Provides a basic introduction to chemical equations. (SL)

Discusses historically the term element as used in chemistry as a suitable topic for the secondary level chemistry class. (SL)