Написать 3 гомолога и 3 изомера гептана (С7Н16)

Гомологи: С6H14(гексан) H3C-CH2-CH2-CH2-CH2-CH3 C8H18(окатан) H3C-CH2-CH2-CH2-CH2-CH2-CH2-CH3 C3H8(пропан) H3C-CH2-CH3Изомеры (у всех формула С7H16):2,3-диметилпентан                 CH3                                                  !                                  H3C-CH-CH-CH2-CH3                                           !                                                CH33-этилпентан                                    

H3C-CH2-CH-CH-CH3                  !                 С2H52,4-диметилпентан                      CH3                                                      !                                             H3C-CH-CH2-CH-CH3                                                                     !                                                                     CH3  2,3,3-триметилбутан                                                                        CH3                                                                        !                                                      H3C-CH - C-CH3                                                               !        !                                                              CH3   CH3