1) 4 P + 5 O₂ ===> 2 P₂O₅
2) 2 Ca + O₂ ===> 2 CaO
3) H₂C=CH₂ + 3 O₂ ===> 2 CO₂ ↑ + 2 H₂O
4) 2 ZnS + 3 O₂ ===> 2 ZnO + 2 SO₂ ↑
5) C₁₂H₂₂O₁₁ + 12 O₂ ===> 12 CO₂ ↑ + 11 H₂O
1) 4 P + 5 O₂ ===> 2 P₂O₅
2) 2 Ca + O₂ ===> 2 CaO
3) H₂C=CH₂ + 3 O₂ ===> 2 CO₂ ↑ + 2 H₂O
4) 2 ZnS + 3 O₂ ===> 2 ZnO + 2 SO₂ ↑
5) C₁₂H₂₂O₁₁ + 12 O₂ ===> 12 CO₂ ↑ + 11 H₂O