Ответы на вопрос:
ответ:7) А
11)
CH4+Cl2=CH3Cl+HCl
2CH3Cl+2Na=C2H6+2NaCl
C2H6+Cl2=C2H5Cl+HCl
C2H5C+NaOH=C2H5OH+NaCl
C2H5OH+СuO--->CH3COH+Cu+H2O
CH3COH+Ag2O--->CH3COOH+2Ag
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