СРОЯНО!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
С2Н4-Н2Н5Сl-C2H5OH-C2H4-C2H4Br2
C2H4+?
C2H5CI+?
C2H5OH+?
C2H4+?
C2H4Br2+?​
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