Question

ПОМОГИТЕ С ХИМИЕЙ!!!
1) fe —> fecl2 —> fe(oh)2 —> feo —>fe —> fecl3 —>fe(oh)3 —> fe(no3)3.
2) Al—> Al2(So4)3 —> Al(oh)3 —> Na[Al(oh)4].

Answer 1

1. Fe + 2HCl = FeCl2 + H2

FeCl2 + 2NaOH = Fe(OH)2 + 2NaCl

Fe(OH)2 (t)= FeO + H2O

2FeO (t)= 2Fe + O2

2Fe + 3Cl2 = 2FeCl3

FeCl3 + 3KOH = Fe(OH)3 + 3KCl

Fe(OH)3 + 3HNO3 = Fe(NO3)3 + 3H2O

2. 2Al + 3H2SO4 = Al2(SO4)3 + 3H2

Al2(SO4)3 + 6KOH = 2Al(OH)3 + 3K2SO4

Al(OH)3 + NaOH = Na[Al(OH)4].