Реакции:
Na₂SO₃+2HCl=2NaCl+H₂O+SO₂↑
FeCl3₃3KOH=3KCl+Fe(OH)₃↓
Na₂CO₃+CaCl₂=2NaCl+CaCO₃↓
Zn+FeSO₄=ZnSO₄+Fe↓
CaCl₂+2AgNO₃=Ca(NO₃)₂+2AgCl↓
K₂SO₄+BaCl₂=2KCl+BaSO₄↓
K₂SO₄+Ba(NO₃)₂=2KNO₃+BaSO₄↓
CaCO₃+2HCl=CaCl₂+H₂O+CO₂↑
(NH₄)₂SO₄+2NaOH=Na₂SO₄+2NH₃↑+2H₂O
2К₃[Fe(CN)₆] +3FeSO₄=KFe[Fe(CN)₆]↓+3K₂SO₄
3К₄[Fe(CN)₆]+4FeCl₃=KFe[Fe(CN)₆]↓+12KCl
FeCl₃+3КCNS=Fe(CNS)₃+3KCl
Цепочки:
1)
C+O2=CO₂
MgO+CO₂=MgCO₃
MgCO₃+H₂O+CO₂=Mg(HCO₃)₂
Mg(HCO₃)₂=t=MgCO₃+H₂O+CO₂↑
MgCO₃=t=MgO+CO₂↑
MgO+2HNO₃=H₂O+Mg(NO₃)₂
Mg(NO₃)₂+2NaOH=2NaNO₃+Mg(OH)₂↓
Mg(OH)₂=t=MgO+H2O
2)
Fe+2HCl=FeCl₂+H₂↑
2FeCl₂+Cl₂=FeCl₃
FeCl₃+3NaOH=Fe(OH)₃↓+3NaCl
2Fe(OH)₃+3H₂SO₄=Fe₂(SO₄)₃+3H₂O
Fe₂(SO₄)₃+3Ba(NO₃)₂=2Fe(NO₃)₃+3BaSO₄↓