★
2KMnO4 + 16HBr
→ 2MnBr2 + 2KBr + 8H2O + 5Br2
.
Br2 + 2NaI →2NaBr + l2
.
H2 + l2 → 2HI ( t°, chất xúc tác Pt)
.
2KMnO4 + 16HCl
→ 2MnCl2 + 2KCl + 8H2O + 5Cl2↑
.
Cl2 + 2Na → 2NaCl (t°)
.
NaCl + H2SO4 → NaHSO4 + HCl
.
KMnO4 + ? → CaOCl2 + ?
.
2CaOCl2 → 2CaCl2 + O2↑ (t°)
★
MnO2 + 4HCl → MnCl2 + 2H2O + Cl2↑
.
Cl2 + 2Na → 2NaCl (t°)
.
2NaCl + H2SO4 → Na2SO4 + 2HCl
.
HCl + NaOH → NaCl + H2O
.
2NaCl + 2H2O → H2 + Cl2↑ + 2NaOH
.
Cl2 + 2NaBr → 2NaCl + Br2
.
Br2 + 2NaI → 2NaBr + I2
.
I2 + H2 → 2Hl ( t°)