2Zn+O2=2ZnO
2Fe+3Cl2=2FeCl3
2Ag+S=Ag2S
2Na+Cl2=2NaCl
2Hg+O2=2HgO
2Al+3Cl2=2AlCl3
2Al+3S=Al2S3
4Al+3O2=2Al2O3
Na+O2=Na2O
2Zn+O2=2ZnO
2Fe+3Cl2=2FeCl3
2Ag+S=Ag2S
2Na+Cl2=2NaCl
2Hg+O2=2HgO
2Al+3Cl2=2AlCl3
2Al+3S=Al2S3
4Al+3O2=2Al2O3
Na+O2=Na2O