- 4P+5O2→2P2O5{4}{P} + {5}{O}_{2} → {2}{P}_{2}{O}_{5}
- P+O2→P2O3{P} + {O}_{2} → {P}_{2}{O}_{3}
- S+O2→SO2{S} + {O}_{2} →{S}{O}_{2}
- 2Zn+O2→2ZnO{2}{Z}{n} + {O}_{2} →{2} {Z}{n}{O}