The New Encyclopaedia Britannica: Macropaedia: knowledge in depth. 19 vEncyclopaedia Britannica, Incorporated, 1981 - Encyclopedias and dictionaries |
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Page 132
... materials . Film materials . Most of the above - mentioned groups of chemicals that can be used either as plastics or elasto- mers can also be made into the form of coherent films . In the more highly industrialized countries there is a ...
... materials . Film materials . Most of the above - mentioned groups of chemicals that can be used either as plastics or elasto- mers can also be made into the form of coherent films . In the more highly industrialized countries there is a ...
Page 149
... materials , or it may dissociate to give the products ( region c in Figure 1 ) . The products in the case of the reaction chosen are the ions E + and N- , which are held together by electrostatic attraction as an ion pair at the right ...
... materials , or it may dissociate to give the products ( region c in Figure 1 ) . The products in the case of the reaction chosen are the ions E + and N- , which are held together by electrostatic attraction as an ion pair at the right ...
Page 183
... materials repel various insects . There seems to be no generally occurring repellent for all in- sects , nor has any special relationship between chemical composition and olfactory repellency been discovered . Protection of man and ...
... materials repel various insects . There seems to be no generally occurring repellent for all in- sects , nor has any special relationship between chemical composition and olfactory repellency been discovered . Protection of man and ...
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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