Question

Hoàn thành chuỗi phản ứng theo thứ tự

a) Al -> Al\(_2\)O\(_3\) -> AlCl\(_3\) -> Al\(_2\)(SO\(_4\))\(_3\) -> Al(OH)\(_3\)

b) FeCl\(_2\) -> Fe(OH)\(_2\) -> FeO -> Fe -> FeCl\(_3\) -> Fe(OH)\(_3\) -> Fe\(_2\)O\(_3\) -> Fe\(_2\)(SO\(_4\))\(_3\) -> Fe(NO\(_3\))\(_2\)

Answer 1

a) 4Al+3O2--->2Al2O3

Al2O3+6HCl--->2AlCl3+3H2O

2AlCl3+ 3H2SO4--->Al2(SO4)3+6HCl

Al2(SO4)3+6NaOH----> 2Al(OH)3+3Na2SO4

b) FeCl2+2 NaOH--->Fe(OH)2+2NaCl

Fe(OH)2---->FeO+H2O

FeO+H2-->Fe+H2O

Fe+Cl2---->FeCl2

2FeCl2+Cl2--->2FeCl3

FeCl3+3NaOH--->Fe(OH)3+3NaOH

2Fe(OH)3---->Fe2O3+3H2O

Fe2(SO4)3+3HNO3---->Fe(NO3)3+3H2SO4

Answer 2

https://i.imgur.com/MLjB9eR.jpg