Question

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Answer 1

\(\left(1\right)FeO+2HCl--->FeCl_2+H_2\uparrow\)

\(\left(2\right)FeCl_2+2NaOH--->Fe\left(OH\right)_2\downarrow+2NaCl\)

\(\left(3\right)2Fe\left(OH\right)_3+3H_2SO_4--->Fe_2\left(SO_4\right)_3+6H_2O\)

\(\left(4\right)2Fe\left(OH\right)_3\overset{t^o}{--->}Fe_2O_3+3H_2O\)

Answer 2

Fe202 + 4HCl => 2FeCl2 + 2H20

2FeCl2 + 6NaOH + Cl2 => 2Fe(OH)3 + 6NaCl

2Fe(OH)3 + 3H2SO4 => Fe2(SO4)3 + 6H2O

2Fe(OH)3 => Fe2O3 + 3H2O