The New Encyclopaedia Britannica: Macropaedia (19 v.)Encyclopaedia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 98
... molecule is described as being het- eropolar ( or simply polar ) . Polar and nonpolar molecules have different properties . Electrovalent bonding . Electrovalent bonding occurs when the electronegativity difference between two atoms ...
... molecule is described as being het- eropolar ( or simply polar ) . Polar and nonpolar molecules have different properties . Electrovalent bonding . Electrovalent bonding occurs when the electronegativity difference between two atoms ...
Page 111
... molecules as impurities . The degree of purity of any particular substance depends on the effort that is made to remove the last traces of im- purities , and the effort expended generally depends on the use to be made of the compound ...
... molecules as impurities . The degree of purity of any particular substance depends on the effort that is made to remove the last traces of im- purities , and the effort expended generally depends on the use to be made of the compound ...
Page 172
... molecules . From the information obtained it is possible to reason back , at least in part , to the structure of the original molecule . Various calorimeters are useful in determining the heat capacities of a given phase , the heat ...
... molecules . From the information obtained it is possible to reason back , at least in part , to the structure of the original molecule . Various calorimeters are useful in determining the heat capacities of a given phase , the heat ...
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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 Chekiang 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 Hopeh hydrogen important increased industry insects involved ions king known land large number Lo-yang major mass materials ment metal methods molecular molecules nitrogen northern nucleus occur officials orbitals organic oxide oxygen party percent period political population provinces quartets reactants receptors region reign result river separation Shang Sinhalese social sodium sodium chloride southern species structure substances sulfonamide sulfur sulfuric acid Szechwan T'ang Taoist temperature tion trans Tsung turtles Yangtze