1.Al→Al2O3→AlCl3→Al(OH)3→Al2O3
4Al+3O₂=2Al2O3
Al2O3+6HCI=2AlCl3+3H₂O
AlCl3+3NaOH=Al(OH)3↓+3NaCI
2Al(OH)3=Al2O3+3H₂O
2. P→P2O5→H3PO4→Na3PO4→Ca3(PO4)2
4P+5O₂=2P2O5
P2O5+3H₂O=2H3PO4
H3PO4+3NaOH=Na3PO4+3H₂O
2Na3PO4+3CaCI₂=Ca3(PO4)2↓+6NaCI
3. Zn→ZnCl2→Zn(OH)2→ZnO→Zn(NO3)2
Zn+2HCI=ZnCl2+H₂
ZnCl2+2NaOH=Zn(OH)2+2NaCI
Zn(OH)2=ZnO+H₂O
ZnO+2HNO₃=Zn(NO3)2 +H₂O
4.Cu →CuO→CuCl2→Cu(OH)2→CuO→Cu
2Cu+O₂=2CuO
CuO+2HCI=CuCl2+H₂O
CuCl2+2NaOH=Cu(OH)2+2NaCI
Cu(OH)2=CuO+H₂O
2CuO+C=2Cu +CO₂
5.
N2O5+H₂O=2HNO3
2HNO3+Fe(OH)₂=Fe(NO3)2+2H₂O
Fe(NO3)2+2NaOH=Fe(OH)2+2NaNO₃
Fe(OH)2+H₂S=FeS+2H₂O
FeS+H₂SO₄=FeSO4+2H₂S
1.
4Al + 3O₂ = 2Al₂O₃
Al₂O₃ + 6HCI = 2AlCl₃ + 3H₂O
AlCl₃ + 3NaOH = Al(OH)₃↓ + 3NaCI
2Al(OH)₃ =t°= Al₂O₃ + 3H₂O
2.
4P + 5O₂ = 2P₂O₅
P₂O₅ + 3H₂O = 2H₃PO₄
2H₃PO₄ + 3Na₂O = 2Na₃PO₄ + 3H₂O
2Na₃PO₄ + 3CaCI₂ = Ca₃(PO₄)₂↓ + 6NaCI
3.
Zn + CI₂ = ZnCl₂
ZnCl₂ + 2KOH = Zn(OH)₂ + 2KCI
Zn(OH)₂ =t°= ZnO + H₂O
ZnO + 2HNO₃ = Zn(NO₃)₂ + H₂O
4.
2Cu + O₂ = 2CuO
CuO + 2HCI = CuCl₂ + H₂O
CuCl₂ + Ba(OH)₂ = Cu(OH)₂↓ + BaCI₂
Cu(OH)₂ =t°= CuO + H₂O
CuO + H₂ = Cu + H₂O
5.
N₂O₅ + H₂O = 2HNO₃
2HNO3 + FeO = Fe(NO₃)₂ + 2H₂O
Fe(NO₃)₂ + 2KOH = Fe(OH)₂↓ + 2KNO₃
Fe(OH)₂ + H₂S = FeS + 2H₂O
FeS + H₂SO₄ = FeSO₄ + 2H₂S
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