Question

Уравняйте
NO+O2=NO2;
CH4=C+H2;
Cu2O+O2=CuO;
N2+Mg=Mg3 N2;
BaO2=Ba+O2;
FeCl2+Cl2=FeCl3;

Answer 1

2NO+O2-->2NO2;
CH4-->C+2H2;
2Cu2O+O2-->4CuO;
N2+3Mg-->Mg3N2;
2BaO-->2Ba+O2;
2FeCl2+Cl2-->2FeCl3;