Question

Viết PTHH hoàn thành chuỗi chuyển hóa sau:

\(a.Na\underrightarrow{\left(1\right)}NaOH\underrightarrow{\left(2\right)}Al\left(OH\right)_3\underrightarrow{\left(3\right)}Al_2O_3\underrightarrow{\left(4\right)}Al\underrightarrow{\left(5\right)}Al_2\left(SO_4\right)_3\underrightarrow{\left(6\right)}BaSO_4\)

Answer 1

(1) 2Na+2H2O--->2NaOH+H2

(2) 3NaOH+Al(NO3)3--->Al(OH)3+3NaNO3

(3) 2Al(OH)3--->Al2O3+3H2O

(4) 2Al2O3-đpnc---> 4Al+3O2

(5) 2Al+3H2SO4--->Al2(SO4)3+3H2

(6) Al2(SO4)3+3BaCl2--->3BaSO4+2AlCl3

Answer 2

(1) 2Na+2H2O->2NaOH+H2

(2) 3NaOH+AlCl3->Al(OH)3+3NaCl

(3) 2Al(OH)3->Al2O3+3H2O

(4) 2Al2O3-điện phân nóng chảy->4Al+3O2

(5) 2Al+3H2SO4->Al2(SO4)3+3H2

(6) Al2(SO4)3+3BaCl2->3BaSO4+2AlCl3