Cрочно!!Составьте цепочку превращений: 1)Fe >> 2)FeO >> 3)Fe₂O₃ >> 4)Fe(OH₃)
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5)Fe(OH)₂ >> 6)FeCl2 >> 7)FeCl₃
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5)Fe(OH)₂ >> 6)FeCl2 >> 7)FeCl₃
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1. 2Fe+O2=2FeO2. 4FeO+O2 = 2Fe2O3
3. Fe2O3+3H2O=2Fe(OH)3
4. FeO + H2O=Fe(OH)2.
6. Fe(OH)2 + 2HCl = FeCl2 + 2H2O
7. 2FeCl2 + Cl2 = 2FeCl3