Помогите с цепочкой превращений
1)Cr(SO4)3 -- Cr(OH)3 -- Cr2O3 -- Cr -- CrCl2 -- CrCl3
2)Cr(OH)3 -- Na( Cr(OH)4)
3)Cr2O3 --CrCl3
Помогите с цепочкой превращений
1)Cr(SO4)3 -- Cr(OH)3 -- Cr2O3 -- Cr -- CrCl2 -- CrCl3
2)Cr(OH)3 -- Na( Cr(OH)4)
3)Cr2O3 --CrCl3
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
1. Cr2(SO4)3 → Cr(OH)3 → Cr2O3 → Cr → CrCl2 → CrCl3
Cr2(SO4)3 + 6NaOH= 2Cr(OH)3↓ + 3Na2SO4
2Cr(OH)3 = Cr2O3 + 3H2O
Cr2O3 + 2Al = 2Cr + Al2O3
Cr + HCl = CrCl2 + H2↑
2CrCl2 + H[SnCl3] = 2CrCl3 + Sn↓ +HCl
3. Cr2O3 + 3C + 3Cl2 = 2CrCl3 + 3CO