Al - AlCl3 - Al(OH)3 - Al2O3 - Al
2Al+3Cl2=2AlCl3
AlCl3+3Na(OH)=Al(OH)3+3NaCl
2Al(OH)3+3Li2O=Al2O3+3LiOH
Al2O3+6K=2Al+3K2O
Объяснение:
А) 2Al + 6HCl = 2AlCl3 + 3H2
AlCl3 + 4NaOH(изб.) = Na[Al(OH)4] + 3NaCl
Б) Fe + 2HCl = FeCl2 + H2
FeCl2 + 2NaOH = 2NaCl + Fe(OH)2
Fe(OH)2 = FeO + H2O
FeO + C = Fe + CO
В) 2Fe + 3Cl2 = 2FeCl3
FeCl3 + 3NaOH = 3NaCl + Fe(OH)3
Fe(OH)3 = Fe2O3 + H2O
Fe2O3 + 3C = 2Fe + 3CO
