The New Encyclopaedia Britannica: Macropaedia (19 v.)Encyclopaedia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 83
... bonds to contract , and ( 2 ) the electrons that constitute the carbon - carbon bonds do not lie along the direct lines between the centres of the carbon atoms , but rather they bulge outward in the plane of the ring , so that the actual ...
... bonds to contract , and ( 2 ) the electrons that constitute the carbon - carbon bonds do not lie along the direct lines between the centres of the carbon atoms , but rather they bulge outward in the plane of the ring , so that the actual ...
Page 85
... bond has eight carbon atoms . Sigma and pi bonds Cis and . trans isomers HCI hydrochloric acid Addition reactions The carbon- carbon triple bond Commer- cial production. 2 3 4 5 3 CH , CH = CHCH , CH , CH , 2 3 4 CH , = CHCHCH , CH , 3 ...
... bond has eight carbon atoms . Sigma and pi bonds Cis and . trans isomers HCI hydrochloric acid Addition reactions The carbon- carbon triple bond Commer- cial production. 2 3 4 5 3 CH , CH = CHCH , CH , CH , 2 3 4 CH , = CHCHCH , CH , 3 ...
Page 88
... bonds separated by single bonds occur in fungi and higher plants ; an example is the substance CH , C = CC = CC = CC = CC = C - CH = CH2 , present in Asteraceae . Acetylenes also undergo another type of dimerization , or self - addition ...
... bonds separated by single bonds occur in fungi and higher plants ; an example is the substance CH , C = CC = CC = CC = CC = C - CH = CH2 , present in Asteraceae . Acetylenes also undergo another type of dimerization , or self - addition ...
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activity andesite antibodies antigen atoms basalt basin bonds carbon cause cells centimetres central centre century chemical composition crystals cultural cycle cyclone earth economic effect eruption evaporation example feet feldspar feldspathoids flow freezing gabbro glaciers groundwater hallucinations heat hockey humidity Hungarian Hungary hydrocarbons hydrogen hydrograph hydrologic hydrologic cycle hypnosis hypnotic ice sheets icebergs Iceland ideology igneous rocks Illinois illusion immunoglobulin immunological important increase India industrial intrusive kilometres king lakes land lava layers lymphocytes mafic magma major melting ment metres miles millimetres minerals molecules mountain northern occur ocean parasitic percent philosophy plagioclase political population precipitation pressure produced pyroxene rainfall reaction region relatively result river runoff snow social soil specific square kilometres square miles structure surface temperature theory tion types United vapour volcanic western wind zone