Fe->Fe2O3->Fe2(SO4)3-><- Fe(OH)3 -><-FeCl3->FeOH3->Fe пожалуйста решите срочно!!Плиз!! Цепочка превращений.........
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1. 4Fe+3O₂=2Fe₂O₃2. Fe₂O₃+3H₂SO₄=Fe₂(SO₄)₃+3H₂O
3. Fe₂(SO₄)₃+6NaOH=3Na₂SO₄+2Fe(OH)₃
4. Fe(OH)₃+3HCl=FeCl₃+3H₂O
5. FeCl₃+3NaOH=Fe(OH)₃+3NaCl
6. 2Fe(OH)₃+3H₂=2Fe+6H₂O