Ответ: 1. Fe+H2SO4=FeSO4+H2O2. FeSO4+2NaOH=Fe(OH)2+Na2SO43. Fe(OH)2= FeO+H2O4. FeO+2NaCl=FeCl2+2NaO5. FeCl2+Zn= ZnCl2+Fe
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Ответ: 1. Fe+H2SO4=FeSO4+H2O
2. FeSO4+2NaOH=Fe(OH)2+Na2SO4
3. Fe(OH)2= FeO+H2O
4. FeO+2NaCl=FeCl2+2NaO
5. FeCl2+Zn= ZnCl2+Fe