Осуществить цепочку превращений:
1) S→H2S→SO2→SO3→H2SO4
2) N2→NH3→(NH4)2SO4→NH3→N2
3) P→P2O5→H3PO4→Na3PO4→Ca3(PO4)2
1) S→H2S→SO2→SO3→H2SO4
2) N2→NH3→(NH4)2SO4→NH3→N2
3) P→P2O5→H3PO4→Na3PO4→Ca3(PO4)2
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Verified answer
1)S + H₂ = H₂S
2H₂S + 3O₂ = 2SO₂ + 2H₂O
2SO₂ + O₂ = 2SO₃
SO₃ + H₂O = H₂SO₄
2)
N₂ + 3H₂ = 2NH₃
2NH₃ + H₂SO₄ = (NH₄)₂SO₄
(NH₄)₂SO₄ = NH₄HSO₄ + NH₃
2NH₃ = 3H₂ + N₂
3)
4P + 5O₂ = 2P₂O₅
P₂O₅ + 3H₂O = 2H₃PO₄
H₃PO₄ + 3NaOH = Na₃PO₄ + 3H₂O
2Na₃PO₄ + 3CaCl₂ = Ca₃(PO₄)₂ + 6NaCl