Ответ:
CaO+3C=CaC2+CO
CaC2+2H2O=Ca(OH)2+C2H2
C2H2+H2=C2H4
nC2H4=(-CH2-CH2-)n
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Ответ:
CaO+3C=CaC2+CO
CaC2+2H2O=Ca(OH)2+C2H2
C2H2+H2=C2H4
nC2H4=(-CH2-CH2-)n