Question

H2O->H2->H3C-CH3->CO2->Na2CO3 как решить?

Answer 1

2H2O -> 2H2 + O2

CH2=CH2 + H2 -> CH3-CH3

2CH3-CH3 + 7O2 ->4CO2 +6H2O

CO2 + Na2O = Na2CO3