[2]C+O₂=[2]CO

Fe₂O₃+[3]C=[2]Fe+[3]CO

Na₂CO₃+[2]HCl=[2]NaCl+CO₂+H₂O

[2]Pb(NO₃)₂=[2]PbO+[4]NO₂+O₂

[2]AgNO₃+H₂S=Ag₂S+[2]HNO₃

P₄+[3]I₂=[2]PI₃

CH₄+[2]O₂=CO₂+[2]H₂O

[2]KClO₃=2KCl+[3]O₂

[2]NaOH+H₂SO₄=Na₂SO₄+[2]H₂O