Ответы и объяснения

2014-03-02T04:47:00+00:00
2CH4=C2H2+3H2
C2H2+H2O=CH3CHO
CH3CHO+H2=CH3CH2OH
CH3CH2OH+HBr=CH3CH2Br+H2O
CH3CH2Br+KOH=C2H4+KBr+H2O