ОЧЕНЬ Б) Fe = FeCl2 = Fe(OH)2 = FeO = Fe
В) Fe = FeCl3 = Fe(OH)3 = Fe2O3 = Fe

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