求指点!!!
4Al + 3O2 === 2Al2O3(条件:点燃)
2Al2O3 === 4Al + 3O2↑(条件:电解)
2Al + 3Cl2 === 2AlCl3(条件:点燃)
2Al + 2NaOH + 2H2O === 2NaAlO2 + 3H2↑
Al2O3 + 6HCl === 2AlCl3 + 3H2O
Al2O3 + 2NaOH === 2NaAlO2 + H2O
Al(OH)3 + 3HCl === AlCl3 + 3H2O
AlCl3 + 3NH3.H2O === Al(OH)3 ↓+ 3NH4Cl
2Al(OH)3 === Al2O3 + 3H2O(条件:加热)
2NaAlO2+ CO2(少量)+ 3 H2O ==== 2 Al(OH)3↓+ Na2CO3
NaAlO2+ CO2(过量)+ 2H2O ==== Al(OH)3↓+ NaHCO3
Al(OH)3+NaOH =NaAlO2+2H2O
AlCl3+3NaAlO2+6H2O =4Al(OH)3+3NaCl
4Al + 3O2 === 2Al2O3(条件:点燃)
2Al2O3 === 4Al + 3O2↑(条件:电解)
2Al + 3Cl2 === 2AlCl3(条件:点燃)
2Al + 2NaOH + 2H2O === 2NaAlO2 + 3H2↑
Al2O3 + 6HCl === 2AlCl3 + 3H2O
Al2O3 + 2NaOH === 2NaAlO2 + H2O
Al(OH)3 + 3HCl === AlCl3 + 3H2O
AlCl3 + 3NH3.H2O === Al(OH)3 ↓+ 3NH4Cl
2Al(OH)3 === Al2O3 + 3H2O(条件:加热)
2NaAlO2+ CO2(少量)+ 3 H2O ==== 2 Al(OH)3↓+ Na2CO3
NaAlO2+ CO2(过量)+ 2H2O ==== Al(OH)3↓+ NaHCO3
Al(OH)3+NaOH =NaAlO2+2H2O
AlCl3+3NaAlO2+6H2O =4Al(OH)3+3NaCl