Написать реакции к этой цепочке: метан-ацителен-этаналь-этанол-бромэтан-этилен-этанол-этаналь

1) 2CH4 = C2H2 + 2H2                                                O                                               // 2)C2H2 + H2O = CH3 - C                                             \                                              H Над стрелкой напиши - катализатор HgSO4                      O                     // 3) CH3 - C      + H2 = CH3 - CH2 - OH                  \                   H Над стрелкой - t,  катализатор 4)CH3 - CH2 - OH + HBr= CH3 - CH2 - Br + H2O 5)CH3 - CH2 - Br+ KOH = C2H5OH + KBr     C2H5OH = C2H4 + H2O 6)C2H4 + H2O = C2H5OH Над стрелкой - t, H2SO4 (конц)                                                                  O                                                                 // 7)CH3 - CH2 - OH + СuO = CH3 - C      + Cu + H2O                                                                \                                                                 H  над стрелкой - t