CHEM 4. Chemical Calculations. Introductory chemistry for students who plan to major in a scientific field. Appropriate for students desiring to prepare themselves for Chemistry 1A. Emphasizes chemical nomenclature and techniques of chemical problem solving. Topics covered include: dimensional analysis; conversions between measuring units; weight, mole and chemical equations; density; elementary gas laws; heat and temperature; elementary acid and base chemistry; oxidation and reduction; solutions. Three hours lecture. Prerequisite: High school algebra and college algebra; sufficient performance on the college algebra diagnostic test, or equivalent. Graded: Graded Student. Units: 3.0