Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
4Al+3O2\(\overset{t^0}{\rightarrow}\)2Al2O3
Al2O3+6HCl\(\rightarrow\)2AlCl3+3H2
AlCl3+3NaOH\(\rightarrow\)Al(OH)3+3NaCl
2Al(OH)3+3H2SO4\(\rightarrow\)Al2(SO4)3+6H2O
Al+O2→Al2O3( có nhiệt độ)
Al2O3+HCl→AlCl3+H2O
AlCl3+ NaOH→Al(OH)3+NaCl
Al(OH)3+H2SO4→Al2(SO4)3+H2O
(bạn tự cân bằng nhé)
a: \(Cu+H_2SO_4->CuSO_4+H_2\)
\(CuSO_4+BaCl_2->CuCl_2+BaSO_4\)
\(2CuCl_2+O_2->2CuO+2Cl_2\)
a.
(1) 4Al + 3O2 ---> 2Al2O3
(2) \(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
(3)\(Al_2\left(SO_4\right)_3+6NaOH\rightarrow2Al\left(OH\right)_3\downarrow+3Na_2SO_4\)
(4)\(2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\)
a, 4Al + 3O2 -> 2Al2O3
Al2O3 + 3H2SO4 -> Al2(SO4)3 + 3H2O
Al2(SO4)3 + 6NaOH -> 2Al(OH)3 + 3Na2SO4
2Al(OH)3 nhiệt độ lên Al2O3 + 3H2O
b, 4Fe + 3O2 -> 2Fe2O3
Fe2O3 + 3H2SO4 -> Fe2(SO4)3 + 3H2O
Fe2(SO4)3 + KOH -> Fe(OH)3
Fe(OH)3 nhiệt độ lên Fe2O3 + h20
Fe2O3 + 6HCl -> 2FeCl3 + 3H2o
a) 2Fe+3Cl2--->2FeCl3
FeCl3+3NaOH--->3NaCl+Fe(OH)3
3Fe(OH)3-->Fe2O3+3H2O
Fe2O3+H2---->2Fe+3H2O
Fe+H2SO4---->FeSO4+H2
FeSO4+BaCl2---->FeCl2+BaSO4
b) Fe+2HCl--->FeCl2+H2
FeCl2+AgNO3--->2AgCl+Fe(NO3)2
Fe(NO3)2+2NaOH--->2NaNO3+Fe(OH)2
Fe(OH)2+Na2SO4--->2NaOH+FeSO4
FeSO4+Zn----->ZnSO4+Fe
Fe+.....Ko biết
c)4 Al+3O2--->2Al2O3
Al2O3+3H2SO4--->Al2(SO4)3+3H2O
Al2(SO4)3+3BaCl2---->2AlCl3+3BaCl2
Alcl3+3NaOH--->Al(OH)3+3NaCl
2Al(OH)3--->Al2O3+3H2O
2Al2O3--->4Al+3O2
a) 2Fe+3Cl2--->2FeCl3
FeCl3+3NaOH--->3NaCl+Fe(OH)3
3Fe(OH)3-->Fe2O3+3H2O
Fe2O3+H2---->2Fe+3H2O
Fe+H2SO4---->FeSO4+H2
FeSO4+BaCl2---->FeCl2+BaSO4
b) Fe+2HCl--->FeCl2+H2
FeCl2+AgNO3--->2AgCl+Fe(NO3)2
Fe(NO3)2+2NaOH--->2NaNO3+Fe(OH)2
Fe(OH)2+Na2SO4--->2NaOH+FeSO4
FeSO4+Zn----->ZnSO4+Fe
ko có PTHH
c)4 Al+3O2--->2Al2O3
Al2O3+3H2SO4--->Al2(SO4)3+3H2O
Al2(SO4)3+3BaCl2---->2AlCl3+3BaCl2
Alcl3+3NaOH--->Al(OH)3+3NaCl
2Al(OH)3--->Al2O3+3H2O
2Al2O3--->4Al+3O2
\(\left(1\right)4Al+3O_2\rightarrow2Al_2O_3\)
\(\left(2\right)Al_2O_3+6HCl\rightarrow2AlCl_3+3H_2O\)
\(\left(3\right)AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\)
\(\left(4\right)2Al\left(OH\right)_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+6H_2O\)
4Al+ 3O2\(\xrightarrow[]{to}\) 2Al2O3
Al2O3+ 6HCl\(\rightarrow\) 2AlCl3+ 3H2O
AlCl3+ 3NaOH\(\rightarrow\) Al(OH)3\(\downarrow\)+ 3NaCl
2Al(OH)3+ 3H2SO4\(\rightarrow\) Al2(SO4)3+ 6H2O