Write the equation for the equation CH3-CH2-CH2-CH2-CH3

CH3-CH2-CH2-CH2-CH3

The composition of homologous molecules differs by one or more CH2 groups. For n-pentane, homologues are methane CH4, ethane CH3-CH3, propane CH3-CH2-CH3, butane CH3-CH2-CH2-CH3, n-hexane CH3-CH2-CH2-CH2-CH2-CH3

In isomers, the number of carbon atoms and the gross formula (abbreviated notation) do not differ. The carbon chain is different.

CH3-CH2-CH (CH3) -CH3 – 2-methylbutane

CH3- (CH3) C (CH3) -CH3 2,2-dimethylpropane



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