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Heilbronner, Edgar – Journal of Chemical Education, 1989
Discusses the problem of symmetry avoidance using water as an historical example. Uses simple pi systems for the analysis. Provides methodology and examples. Investigates two naive arguments. (MVL)
Descriptors: Chemical Bonding, Chemistry, College Science, Higher Education

MacCarthy, Patrick; And Others – Analytical Chemistry, 1989
Analytical methods are reviewed for: alkali and alkaline earth metals; transition metals; precious metals; group 12, 13, 14, and 15 metals, nonmetals; radionuclides; multiple metals; anions; gases; chromatography; mass spectroscopy; photometry; sampling; volatile compounds; surfactants; detergents; pesticides; herbicides; and fungicides. (MVL)
Descriptors: Chemical Analysis, Chemistry, Chromatography, College Science