Назавите по международной наменклатуре углеводороды 1)ch3-ch-ch-ch2-ch-ch3 | | | ch3 ch3 ch3 ch3 ch3 | | 2)ch3-c-ch2-c-ch2-ch-ch3 | | | ch3 ch3 ch3 ch3 | 3)ch3-c-ch-ch3 | | ch3 ch3

Mymail10    2   04.07.2019 02:00    0