The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 122
... theory , in which matter is assumed to be continuously created , the initial composition is ar- bitrary , although supporters of the steady - state theory have always hoped that production of pure hydrogen would give a consistent ...
... theory , in which matter is assumed to be continuously created , the initial composition is ar- bitrary , although supporters of the steady - state theory have always hoped that production of pure hydrogen would give a consistent ...
Page 188
Theory of molecular shape Develop- ment of the chemo- therapeutic approach Chlo- roquine Types of amebicidal drugs Other proto- zoacidal drugs. Two newer , widely discussed theories are based , at least in part , on molecular shape ...
Theory of molecular shape Develop- ment of the chemo- therapeutic approach Chlo- roquine Types of amebicidal drugs Other proto- zoacidal drugs. Two newer , widely discussed theories are based , at least in part , on molecular shape ...
Page 955
... theory that combustion was a reaction be- tween the burning substance and the gas oxygen , present only to a limited extent in the atmosphere , was based on scientific principles , the most important of which was the law of the ...
... theory that combustion was a reaction be- tween the burning substance and the gas oxygen , present only to a limited extent in the atmosphere , was based on scientific principles , the most important of which was the law of the ...
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acid activity addition administration appear atoms became become bonds called carbon cause central centre century charge Charles chemical chemistry Chess China Chinese combined common complete compounds containing continued cultural drugs early economic effect electrons elements energy established example Figure forces four give given groups hydrogen important increased industry involved ions Italy king known land later less literature living major mass materials ment metal methods molecular molecules move natural occur officials orbitals organic original party percent period play political population position possible present properties provinces reaction region remained represented result river rule separation social species structure substances successful temperature tion types United usually various