CH4+Cl2=CH3Cl+HCl X=CH3Cl CH3Cl+NaOH=CH3OH+NaCl Y=CH3OH CH3OH+CuO=HCOH+Cu+H2O Z=HCOH HCOH+Ag2O=HCOOH+2Ag 2HCOOH+2O2=2H2O+2CO2
Спасибо