Добрый день.
Цепочка превращений:
₁ ₂ ₃ ₄ ₅ ₆ ₇ ₈ ₉
Br₂ → HBr → MgBr₂ → HBr → NaBr → Br₂→ KBr → KBrO₃→ KBr →
₁₀ ₁₁ ₁₂ ₁₃
Br₂ → HBr → C₂H₅Br→ NaBr →AgBr
1. Br₂ + H₂ = 2HBr
2. HBr + Mg = MgBr₂ + H₂↑
3. MgBr₂ + 2HF = MgF₂ + 2HBr
4. 2HBr + 2NaOH = 2NaBr + 2H₂O
5. 2NaBr + 2H₂SO₄(конц.) + MnO₂ = Br₂ + Na₂SO₄ + MnSO₄ + 2H₂O
6. Br₂ + KI = I₂ + 2KBr
7. KBr + 3H₂O = KBrO₃ + 3H₂↑
8. 2KBrO₃ = 2KBr + 3O₂
9. 2KBr + Cl₂ = 2KCl + Br₂↑
10. Br₂ + H₂ = 2HBr
11. С₂H₄ + HBr = C₂H₅Br
12. C₂H₅Br + NaOH = C₂H₅OH + NaBr
13. AgNO₃ + NaBr = AgBr + NaNO₃