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222-9+11+12:2*14+14 = ? ( )

Hóa học Lớp 9: a) Fe =>FeCl3=>Fe(OH)3=>Fe2O3=>Fe2(SO4)=>3FeCl3 =>AgCl b) Al=>AlCl3=>Al(OH)3 =>Al2O3 =>Al2(SO4)3=>AlCl3 =>AgCl

Hóa học Lớp 9: a) Fe =>FeCl3=>Fe(OH)3=>Fe2O3=>Fe2(SO4)=>3FeCl3 =>AgCl
b) Al=>AlCl3=>Al(OH)3 =>Al2O3 =>Al2(SO4)3=>AlCl3 =>AgCl, giúp em giải bài hóa này ạ, em cảm ơn thầy cô và các bạn nhiều.

Comments ( 2 )

  1. a) 
    – 2Fe+3Cl_2$\xrightarrow[]{t^o}$2FeCl_3
    – FeCl_3+3NaOH→Fe(OH)_3+3NaCl
    – 2Fe(OH)_3$\xrightarrow[]{t^o}$Fe_2O_3+3H_2O
    – Fe_2O_3+3H_2SO_4→Fe_2(SO_4)_3+3H_2O
    – Fe_2(SO_4)_3+3BaCl_2→3BaSO_4↓+2FeCl_3
    – FeCl_3+3AgNO_3→Fe(NO_3)_3+3AgCl↓
    b)
    – 2Al+3Cl_2$\xrightarrow[]{t^o}$2AlCl_3
    – AlCl_3+3NaOH→Al(OH)_3+3NaCl
    – 2Al(OH)_3$\xrightarrow[]{t^o}$Al_2O_3+3H_2O
    – Al_2O_3+3H_2SO_4→Al_2(SO_4)_3+3H_2O
    – Al_2(SO_4)_3+3BaCl_2→3BaSO_4↓+2AlCl_3
    – AlCl_3+3AgNO_3→Al(NO_3)_3+3AgCl↓
     

  2. Giải đáp + Lời giải và giải thích chi tiết:
      $a)$
    $(1)$ $2Fe+3Cl_2\xrightarrow[]{t^o} 2FeCl_3$
    $(2)$ $FeCl_3+3NaOH→Fe(OH)_3↓+3NaCl$
    $(3)$ $2Fe(OH)_3\xrightarrow[]{t^o} Fe_2O_3+3H_2O$
    $(4)$ $Fe_2O_3+3H_2SO_4→Fe_2(SO_4)_3+3H_2O$
    $(5)$ $Fe_2(SO_4)_3+3BaCl_2→3BaSO_4↓+2FeCl_3$
    $(6)$ $FeCl_3+3AgNO_3→3AgCl↓+Fe(NO_3)_3$
        $b)$
    $(1)$ $2Al+3Cl_2\xrightarrow[]{t^o} 2AlCl_3$
    $(2)$ $AlCl_3+3NaOH→Al(OH)_3↓+3NaCl$
    $(3)$ $2Al(OH)_3\xrightarrow[]{t^o} Al_2O_3+3H_2O$
    $(4)$ $Al_2O_3+3H_2SO_4→Al_2(SO_4)_3+3H_2O$
    $(5)$ $Al_2(SO_4)_3+3BaCl_2→3BaSO_4↓+2AlCl_3$
    $(6)$ $AlCl_3+3AgNO_3→3AgCl↓+Al(NO_3)_3$

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222-9+11+12:2*14+14 = ? ( )

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