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1) Cu → CuO→ Cu(OH)2 → CuSO4
2) Cl2 → Cl2O7 → HCl → CuCl2
3) P→P2O5→H3PO4→Na3PO4
1) Cu → CuO→ Cu(OH)2 → CuSO4
2) Cl2 → Cl2O7 → HCl → CuCl2
3) P→P2O5→H3PO4→Na3PO4
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Ответ:
1)Cu + O → CuO
CuO + H2O → Cu(OH)2
H2SO4 + Cu(OH)2 → CuSO4 + 2 H2O
2)2Cl2 + 7O2 = 2Cl2O7
2Cl2O7+2H2 = 4HCl+7O2
2 Cu + O2 + 4 HCl → 2 CuCl2 + 2 H2O
3)4P + 5O2 = 2P2O5
2P2O5 + 6 H2O = 4 H3PO4
H3PO4+3NaOH = Na3PO4+3H2O