The New Encyclopaedia Britannica: Macropaedia: knowledge in depth. 19 vEncyclopaedia Britannica, Incorporated, 1981 - Encyclopedias and dictionaries |
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Page 111
... structure It probably is fair to say that no ordinary compound is ever entirely free of foreign molecules as impurities . The degree of purity of any particular substance depends on the effort that is made to remove the last traces of ...
... structure It probably is fair to say that no ordinary compound is ever entirely free of foreign molecules as impurities . The degree of purity of any particular substance depends on the effort that is made to remove the last traces of ...
Page 162
... structures of the compounds ; if a material is deduced to have a particular structure on the basis of its chemical reactions and physical properties , then the finding that a compound synthesized by an unambiguous method for this structure ...
... structures of the compounds ; if a material is deduced to have a particular structure on the basis of its chemical reactions and physical properties , then the finding that a compound synthesized by an unambiguous method for this structure ...
Page 792
... structure . The structural aspect of the coal ma- trix ( vitrinite ) may briefly be summarized as follows : Coal possesses a composition that is similar in some re- spects to that of such substances as pitch and bitumen . It is made up ...
... structure . The structural aspect of the coal ma- trix ( vitrinite ) may briefly be summarized as follows : Coal possesses a composition that is similar in some re- spects to that of such substances as pitch and bitumen . It is made up ...
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acid activity administration ammonia army atomic orbitals became benzene bonds Buddhist called carbon atoms cells central centre Ceylon Ch'in Chaetognatha Charadriiformes Charles Chaucer chemical bond chemical reactions chemistry chemoreception Chess Chicago children's literature Chile China Chinese chloride Chou common complex compounds covalent covalent bonds cultural disease drugs dynasty early economic electrons elements emperor energy example fluorine groups hydrogen important increased industry insects involved ions isotopes king known land large number Lo-yang major mass materials ment metal methods molecular molecules nitrogen northern nuclei occur officials orbitals organic oxide oxygen party percent period political population provinces quartets reactants receptors region reign result river separation Shang shell Sinhalese social sodium sodium chloride solution southern species structure substances sulfonamide sulfur sulfuric acid Szechwan T'ang Taoist temperature tion Tsung turtles Yangtze