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bulletdaniel
@bulletdaniel
July 2022
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народ 2 номера ,решите пжл
кто решит респект от меня:)
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kurull235
Verified answer
Цепочка:
1)Fe + 2HCl = FeCl₂ + H₂
2)FeCl₂ + 2NaOH = Fe(OH)₂ + 2NaCl
3) 2Fe + 3Cl₂ = 2FeCl₃
4)FeCl₃ + 3NaOH = Fe(OH)₃ + 3NaCl
5)2Fe(OH)₃ = Fe₂O₃ + 3H₂O
6)4Fe(OH)₃ + O₂ + 2H₂O = 4Fe(OH)₃
Zn²⁺ -> Zn⁰
ZnCl₂ + Mg = MgCl₂ + Zn⁰
Al⁰ -> Al³⁺
2Al⁰ + 6HCl = 2Al³⁺Cl₃ + 3H₂
Al³⁺ + 3OH⁻ = Al(OH)₃
AlCl₃ + 3NaOH = Al(OH)₃ + 3NaCl
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Answers & Comments
Verified answer
Цепочка:1)Fe + 2HCl = FeCl₂ + H₂
2)FeCl₂ + 2NaOH = Fe(OH)₂ + 2NaCl
3) 2Fe + 3Cl₂ = 2FeCl₃
4)FeCl₃ + 3NaOH = Fe(OH)₃ + 3NaCl
5)2Fe(OH)₃ = Fe₂O₃ + 3H₂O
6)4Fe(OH)₃ + O₂ + 2H₂O = 4Fe(OH)₃
Zn²⁺ -> Zn⁰
ZnCl₂ + Mg = MgCl₂ + Zn⁰
Al⁰ -> Al³⁺
2Al⁰ + 6HCl = 2Al³⁺Cl₃ + 3H₂
Al³⁺ + 3OH⁻ = Al(OH)₃
AlCl₃ + 3NaOH = Al(OH)₃ + 3NaCl