Ответ:
CH4+Br2—>CH3Br+HBr
2CH3Br+2Na=2NaBr+CH3-CH3
CH3-CH3=(t) CH2=CH2+H2
CH2=CH2+Cl2=CH2Cl-CH2Cl
nCH2=CH2—[-СН2-СН2-]n
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Ответ:
CH4+Br2—>CH3Br+HBr
2CH3Br+2Na=2NaBr+CH3-CH3
CH3-CH3=(t) CH2=CH2+H2
CH2=CH2+Cl2=CH2Cl-CH2Cl
nCH2=CH2—[-СН2-СН2-]n