Fe2O3+2Al>Al2O3+2Fe
3Mg+N2>Mg3N2
2Al+3S>Al2S3
4P+5O2>2P2O5
4Al+3C>Al4C3
2Al+Cr2O3>2Cr+Al2O3
4Ag+O2>2Ag2O
3Ca+2P>Ca3P2
C+2H2>CH4
4Al+3O2>2Al2O3
Ca+2C>CaC2
3Fe+202>Fe3O4
Si+2Mg>Mg2Si
2Na+s>Na2Si
CaO+3C>CaC2+CO
3Ca+N2>Ca3N2
Si+2Cl2>SiCl4
Ag+2S>Ag2S
H2+Cl2>2HCL
4K+O2>2K2O
