CaO + SO3 = CaSO4
3CaO + P2O5 = Ca3(PO4)2
CaO + CO2 = CaCO3
CaO +2 HCl = CaCl2 + H2O
CaO + H2SO4 = CaSO4 + H2O
CuO + 2HCl = CuCl2 + H2O
CuO + H2SO4 = CuSO4 + H2O
2NaOH + SO3 = Na2SO4 + H2O
Ca(OH)2 + CO2 = CaCO3 + H2O
2NaOH + CO2 = Na2CO3 + H2O
NaOH + HCl = NaCl + H2O
2NaOH + H2SO4 = Na2SO4 + 2H2O
CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl
Ca(OH)2 + H2SO4 = CaSO4 + 2H2O
Ca(OH)2 +2 HCl = CaCL2 +2 H2O
Fe(OH)3 + 3HCl = FeCl3 + 3H2O
2Fe(OH)3 + 3H2SO4 = Fe2(SO4)3 + 6H2O
Mg + 2HCL = MgCL2 + H2
Fe + 2HCl = FeCl2 + H2
Cu + H2SO4 = CuSO4 + SO2 + 2H2O
Mg + H2SO4 = MgSO4 +H2
2Fe+ 6H2SO4 = Fe2(SO4)3 + 3SO2 + 6H2O
Fe + CuCl2 = FeCl2 + Cu
CaO + SO3 = CaSO4
3CaO + P2O5 = Ca3(PO4)2
CaO + CO2 = CaCO3
CaO +2 HCl = CaCl2 + H2O
CaO + H2SO4 = CaSO4 + H2O
CuO + 2HCl = CuCl2 + H2O
CuO + H2SO4 = CuSO4 + H2O
2NaOH + SO3 = Na2SO4 + H2O
Ca(OH)2 + CO2 = CaCO3 + H2O
2NaOH + CO2 = Na2CO3 + H2O
NaOH + HCl = NaCl + H2O
2NaOH + H2SO4 = Na2SO4 + 2H2O
CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl
Ca(OH)2 + H2SO4 = CaSO4 + 2H2O
Ca(OH)2 +2 HCl = CaCL2 +2 H2O
Fe(OH)3 + 3HCl = FeCl3 + 3H2O
2Fe(OH)3 + 3H2SO4 = Fe2(SO4)3 + 6H2O
Mg + 2HCL = MgCL2 + H2
Fe + 2HCl = FeCl2 + H2
Cu + H2SO4 = CuSO4 + SO2 + 2H2O
Mg + H2SO4 = MgSO4 +H2
2Fe+ 6H2SO4 = Fe2(SO4)3 + 3SO2 + 6H2O
Fe + CuCl2 = FeCl2 + Cu
Цепочка №1.
₁ ₂ ₃ ₄
Mg → MgO → MgCO₃ → MgCl₂ → Mg(OH)₃
1. 2Mg + O₂ = 2MgO
2. MgO + H₂CO₃ = MgCO₃ + H₂O
3. MgCO₃ + 2HF = MgF₂ ↓ + CO₂ ↑ + H₂O
4. MgCl₂ + 2KOH = Mg(OH)₂ + 2KCl
Цепочка №2.
₁ ₂ ₃ ₄
Mg → MgCl₂ → MgCO₃ → MgO → MgCl₂
1. Mg + 2HCl = MgCl₂ + H₂↑
2. MgCl₂ + Na₂CO₃ = MgCO₃ + 2NaCl
t
3. MgCO₃ = MgO + CO₂
4. MgO + 2HCl = MgCl₂ + H₂O
Цепочка №3.
₁ ₂ ₃ ₄
Cr₂O₃ → Cr → CrCl₃ → Cr(OH)₃ → Cr₂(SO₄)₃
1. Cr₂O₃ + 2Al = Al₂O₃ + 2Cr
2. 2Сr + 6HCl = 2CrCl₃ + 3H₂
3. CrCl₃ + 3NaOH = 3NaCl + Cr(OH)₃
4. 2Cr(OH)₃ + 3H₂SO₄ = Cr₂(SO₄)₃ + 6H₂O
Цепочка №4.
₁ ₂ ₃
ZnS → ZnO → Zn(NO₃)₂ → ZnO
1. 2 ZnS + 3 O₂ = 2ZnO + 2 SO₂
2. ZnO + 2HNO₃ = Zn(NO₃)₂ + H₂O
t
3. 2Zn(NO₃)₂ = 2ZnO + 4NO₂ + O₂
Цепочка №5.
₁ ₂ ₃ ₄
Al → Al(OH)₃ → Al₂O₃ → AlCl₃ → Al(NO₃)₃
1. 2Al + 6H₂O = 2Al(OH)₃ + 3H₂
t
2. 2Al(OH)₃ = Al₂O₃ + 3H₂O
3. Al₂O₃ + 6HCl = 2AlCl₃ + 3H₂O
4. AlCl₃ + 3NaOH = Al(OH)₃ + 3NaCl