内容简介：
【简介】
Chemistry is the science that is concerned with substances and their properties, composition, and reactions. Four principal areas may be defined: analytical, inorganic, organic, and physical chemistry. In addition to teaching in high schools, colleges, and universities and working in a variety of government laboratories, chemists are employed in such diverse industries as rubber, leather, dye, explosives, drugs, plastics, adhesives, paint, metals, glass, cement, insecticides, textiles, petroleum, soap, paper, semi-conductors, and cosmetics. Synthesis of new organic and inorganic chemicals is of basic importance to all chemistry. Sales of most drug and plastic companies, for example, are concentrated in substances unknown ten years ago. The development of adequate methods for analysis of these new materials requires constant research on instrumental and chemical methods of analysis. An understanding of the rates and equilibria of chemical reactions, t hermodynamics of chemical and physical processes, and the structures of molecules is essential for the development of new fuels and industrial processes as well as for the understanding of many phenomena such as global warming, ozone depletion, and atmospheric pollution. Every educated person should have some knowledge of chemistry and many interesting and rewarding careers require varying amounts of training in this field.
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