2Na + 2H2O = 2NaOH + H2↑
Цепочка превращений
Уравнения химических реакций, с помощью которых можно осуществить цепочку превращений:
Na → NaOH → NaCl → NaNO3 → O2 → SO3 → Na2SO4 → NaCl → HCl → H2S → S → SO2 → Na2SO3.
➤ – ссылка в конце реакции, ведет на страницу с подробной информацией о реакции.
Na → NaOH
NaOH → NaCl
HCl + NaOH = NaCl + H2O
GaCl3 + 3NaOH = 3NaCl + Ga(OH)3↓
FeCl3 + 3NaOH = 3NaCl + Fe(OH)3↓
ZnCl2 + 4NaOH = Na2[Zn(OH)4] + 2NaCl
CrCl2 + 2NaOH = 2NaCl + Cr(OH)2↓
FeCl2 + 2NaOH = 2NaCl + Fe(OH)2↓
ZnCl2 + 2NaOH = 2NaCl + Zn(OH)2↓
CuCl2 + 2NaOH = 2NaCl + Cu(OH)2↓
CaCl2 + 2NaOH = 2NaCl + Ca(OH)2↓
GeCl2 + 2NaOH = 2NaCl + Ge(OH)2↓
NH4Cl + NaOH = NaCl + NH3↑ + H2O
MgCl2 + 2NaOH = 2NaCl + Mg(OH)2↓
PbCl2 + 2NaOH = 2NaCl + Pb(OH)2↓
MgOHCl + NaOH = NaCl + Mg(OH)2↓
AlCl3 + 4NaOH(изб.) = 3NaCl + Na[Al(OH)4]
BeCl2 + 2NaOH = 2NaCl + Be(OH)2↓
NH4Cl + NaOH = NaCl + NH4OH
AlCl3(тв.) + 6NaOH(тв.) `overset(t)(=)` Na3AlO3 + 3NaCl + 3H2O
ZnOHCl + NaOH = NaCl + Zn(OH)2↓
AlCl3 + 3NaOH = 3NaCl + Al(OH)3↓
CrCl3 + 3NaOH = 3NaCl + Cr(OH)3↓
CoCl2 + 2NaOH = 2NaCl + Co(OH)2↓
NaCl → NaNO3
AgNO3 + NaCl = NaNO3 + AgCl↓
Pb(NO3)2 + 2NaCl = 2NaNO3 + PbCl2↓
NaNO3 → O2
2NaNO3 `overset(t)(=)` 2NaNO2 + O2↑
O2 → SO3
2SO2 + O2 `overset(t", "p", "кат.)(=)` 2SO3
SO3 → Na2SO4
Na2O + SO3 = Na2SO4
SO3 + 2NaOH = Na2SO4 + H2O
Na2SO4 → NaCl
CaCl2 + Na2SO4 = 2NaCl + CaSO4↓
BaCl2 + Na2SO4 = 2NaCl + BaSO4↓
SrCl2 + Na2SO4 = 2NaCl + SrSO4
NaCl → HCl
NaCl(тв.) + H2SO4(конц.) `overset(t)(=)` NaHSO4 + HCl↑
2NaCl(тв.) + H2SO4(конц.) `overset(t)(=)` Na2SO4 + 2HCl↑
HCl → H2S
PbS + 2HCl = PbCl2 + H2S↑
2HCl + Li2S = 2LiCl + H2S↑
Cr2S3 + 6HCl = 2CrCl3 + 3H2S↑
ZnS + 2HCl = ZnCl2 + H2S↑
CuS + 2HCl = CuCl2 + H2S↑
CaS + 2HCl = CaCl2 + H2S↑
MgS + 2HCl = MgCl2 + H2S↑
2HCl + (NH4)2S = 2NH4Cl + H2S↑
FeS + 2HCl = FeCl2 + H2S↑
Al2S3 + 6HCl = 2AlCl3 + 3H2S↑
NaHS + HCl = NaCl + H2S↑
KHS + HCl = KCl + H2S↑
HgS + 2HCl = HgCl2 + H2S↑
2HCl + Na2S = 2NaCl + H2S↑
2HCl + K2S = 2KCl + H2S↑
BeS + 2HCl = BeCl2 + H2S↑
BaS + 2HCl = BaCl2 + H2S↑
Ag2S + 2HCl = 2AgCl + H2S↑
Ba(HS)2 + 2HCl = BaCl2 + 2H2S↑
H2S → S
H2S + I2 = 2HI + S↓
H2S + Br2 = 2HBr + S↓
2H2S + H2SO3 = 3S↓ + 3H2O
S → SO2
S + O2 = SO2
SO2 → Na2SO3
Na2O + SO2 = Na2SO3
SO2 + 2NaOH = Na2SO3 + H2O
2NaHCO3 + SO2 = Na2SO3 + 2CO2 + H2O
Na2SiO3 + SO2 = Na2SO3 + SiO2↓