Question

hoàn thiện sơ đồ phản ứng :
Fe-FeO-FeCL2-Fe(OH)2-Fe2O3-FeCL3-Fe(OH)3

Answer 1

\(\left(1\right)Fe+\frac{1}{2}O_2\underrightarrow{t^o}FeO\\ \left(2\right)FeO+2HCl\rightarrow FeCl_2+H_2O\\ \left(3\right)FeCl_2+2NaOH\rightarrow Fe\left(OH\right)_2+2NaCl\\ \left(4\right)4Fe\left(OH\right)_2+O_2\underrightarrow{t^o}2Fe_2O_3+4H_2O\\ \left(5\right)Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\\ \left(6\right)FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3+3NaCl\)

Answer 2

2Fe + O2---->2FeO

FeO +2HCl------>FeCl2+H2O

FeCl2 + 2NaOH-----> Fe(OH)2 +2NaCl

4Fe(OH)2 +O2----->2Fe2O3+4H2O

Fe2O3+6HCl----->2FeCl3 +3H2O

FeCl3+3NaOH---->Fe(OH)3 +3NaCl

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Answer 3

2Fe+O2--->2FeO

FeO+2HCl--->FECl2+H2O

FeCl2+2NaOH--->Fe(OH)2+2NaCl

4Fe(OH)+O2--->2Fe2O3+4H2O

Fe2O3+6HCl--->2FeCl3+3H2O

FeCL3+3NaOH--->Fe(OH)3+3NaCl