Câu hỏi của Phươngg Hiềnn

Question

Al (1)->NaAlO2(2)->Al(OH)3

Al(OH)3 (3)-> NaAlO2

Al(OH)3(4) -> Al2O3(5)->Al

Al(6)->Al2O3

Al(7)->Fe(8)->Fe2O3(9)->Al2O3(10)->NaAlO2

Al(11)->Al (NO3)3 (12) -> Al(OH)3

Al (13) -> Al2O3(14) ->AlCl3 (...

Hồ Hữu Phước · Accepted Answer

1) 2Al+2NaOH+2H2O$\rightarrow$2NaAlO2+3H2

2) NaAlO2+CO2+2H2O$\rightarrow$NaHCO3+Al(OH)3

3) Al(OH)3+NaOH$\rightarrow$NaAlO2+2H2O

4) 2Al(OH)3$\rightarrow$Al2O3+3H2O

5) Al2O3+3H2$\rightarrow$2Al+3H2O

6) 4Al+3O2$\rightarrow$2Al2O3

7) 2Al+ 3FeCl2$\rightarrow$2AlCl3+3Fe

8) 4Fe+3O2$\overset{t^0>450^0C}{\rightarrow}2Fe_2O_3$

9)  Fe2O3+2Al$\rightarrow$Al2O3+2Fe

10) Al2O3+2NaOH$\rightarrow$2NaAlO2+H2O

11) 2Al+3Fe(NO3)2$\rightarrow$2Al(NO3)3+3Fe

12) Al(NO3)3+3NaOH$\rightarrow$Al(OH)3+3NaNO3

13) 4Al+3O2$\rightarrow$2Al2O3

14) Al2O3+6HCl$\rightarrow$2AlCl3+3H2O

15) AlCl3+3NaOH$\rightarrow$Al(OH)3+3NaClCâu trả lời: 1) 2Al+2NaOH+2H2O$\rightarrow$2NaAlO2+3H2