Ответ:
CH₄ + 2O₂ = CO₂ + 2H₂O
2PbS + 3O₂ = 2PbO + 2SO₂
2H₂S + 3O₂ = 2SO₂ + 2H₂O
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Ответ:
CH₄ + 2O₂ = CO₂ + 2H₂O
2PbS + 3O₂ = 2PbO + 2SO₂
2H₂S + 3O₂ = 2SO₂ + 2H₂O