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Common For simple alkanes containing one to three carbon atoms , only one structure is possible , but , with the alkane that has four carbon atoms , two different structures are possible . This suggests that two different compoundswith ...
The syntheses of these natural products have usually been undertaken in the context of the determination of the structures of the compounds ; if a material is deduced to have a particular structure on the basis of its chemical reactions ...
Coal structure . The structural aspect of the coal matrix ( vitrinite ) may briefly be summarized as follows : Coal possesses a composition that is similar in some respects to that of such substances as pitch and bitumen .
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review