Viết PTHH hoàn thành các chuỗi phản ứng sau
1, \(Al\rightarrow Al_2O_3\rightarrow AlCl_3\rightarrow Al\left(OH\right)_3\rightarrow Al_2O_3\rightarrow Al\rightarrow AlCl_3\)
2,\(Fe\rightarrow FeSO_4\rightarrow Fe\left(OH\right)_2\rightarrow FeCl_2\)
3,\(Al\rightarrow AlCl_3\rightarrow Al\left(OH\right)_3\rightarrow Al_2O_3\rightarrow Al_2\left(SO_4\right)_3\rightarrow AlCl_3\rightarrow MgCl_2\)
giúp mk với, mk cảm ơn
1, (1) 4Al+ 3O2--(to)---> 2Al2O3
(2) Al2O3+6HCl---> 2AlCl3+ 3H2O
(3) AlCl3+3NaOH---->Al(OH)3+ 3NaCl
(4) 2Al(OH)3---(to)---> Al2O3+ 3H2O
(5)2Al2O3---(to+ đpnc)--> 4Al+ 3O2
(6) 2Al+ 3Cl2---> 2AlCl3
2, (1)Fe+ CuSO4-->Cu+ FeSO4
(2) FeSO4+ 2NaOH--> Fe(OH)2+ Na2SO4
(3) Fe(OH)2 +2HCl---> FeCl2+ 2H2O
Bài cuối tự làm nhé!
câu 3
2Al + 3Cl2 --t--> 2AlCl3
AlCl3 + 3NaOH -> 3NaCl + Al(OH)3
2Al(OH)3 -t-> Al2O3 + H2O
Al2O3 + 3H2SO4 -> Al2(SO4)3 + 3H2O
Al2(SO4)3 + 3BaCl2 -> 3BaSO4 + 2AlCl3
2AlCl3 + 3Mg -> 2Al + 3MgCl2
\(\left(1\right)4Al+3O_2\underrightarrow{t^o}2Al_2O_3\\ \left(2\right)Al_2O_3+6HCl\rightarrow2AlCl_3+3H_2O\\ AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3\downarrow+3NaCl\\ 2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\\ 2Al_2O_3\underrightarrow{dpnc}4Al+3O_2\\ 2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(Fe+H_2SO_4\rightarrow FeSO_4+H_2\\ FeSO_4+2NaOH\rightarrow Fe\left(OH\right)_2\downarrow+Na_2SO_4\\ Fe\left(OH\right)_2+2HCl\rightarrow FeCl_2+2H_2O\)
\(2Al+6HCl\rightarrow2AlCl_3+3H_2\\ AlCl_3+3KOH\rightarrow3KCl+Al\left(OH\right)_3\downarrow\\ 2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\\ Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\\ Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow2AlCl_3+3BaSO_4\downarrow\\2 AlCl_3+3Mg\rightarrow2Al+3MgCl_2\)
