Решите цепочки: 1.fe-fecl3-fe(oh)2-fe2o3-fe 2.na-naoh-na2co3-nacl - вопрос №943883013223223 от skyblue1 23.06.2020 21:21

Question

Химия: Решите цепочки: 1.fe-fecl3-fe(oh)2-fe2o3-fe 2.na-naoh-na2co3-nacl !

skyblue1 · Answer

4Na + O₂ = 2Na₂O

Na₂O + H₂O = 2NaOH

3NaOH + Fe(NO₃)₃ = Fe(OH)₃ + 3NaNO₃

2Fe(OH)₃ = Fe₂O₃ + 3H₂O

Fe₂O₃ + 6HCl = 2FeCl₃ + 3H₂O

FeCl₃ + 3KOH = Fe(OH)₃ + 3KCl

2Fe(OH)₃ + 3H₂SO₄ = Fe₂(SO₄)₃ + 6H₂O