Ответ:
2CH4 → C2H2+3H2
C2H2+H2 =>C2H4
C2H4+Br2 => C2H4Br2
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Verified answer
Ответ:
2CH4 → C2H2+3H2
C2H2+H2 =>C2H4
C2H4+Br2 => C2H4Br2