1.N2+O2=N2O
2.K+Br2=KBr
3.PbO2+H2=Pb+H2O
4.Fe+Cl2=Fe Cl3
5.HgO=HgO2
6.Al+Cu2S=Al2 S3+Cu
7.Cl2+O2=Cl2O7

PLS na teraz​