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dianakuk
@dianakuk
August 2022
2
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Складіть рівняння за схемою
Аl->Al2O3->AlCl3->Al(OH)3
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Hay4pok
4Al + 3O₂ ⇒2Al₂O₃
Al₂O₃ + 6HCl(конц.) ⇒ 2AlCl₃ + 3H₂O
AlCl
₃
+ 3NaOH
⇒
Al(OH)
₃
+ 3NaCl
2 votes
Thanks 1
VipPhoenixVip
В первом не уравнено =P
Hay4pok
бывает))
VipPhoenixVip
=}}
dianakuk
Спасибо
VipPhoenixVip
1.
4
Al
+ 3O2 → 2
Al2O3
2.
Al2O3 + 6HCl
(конц.)
→ 2
AlCl3
+ 3H2O
3.
AlCl3 + 3NaOH
(разб.)
→
Al(OH)3
↓ + 3NaCl
1 votes
Thanks 1
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Answers & Comments
Al₂O₃ + 6HCl(конц.) ⇒ 2AlCl₃ + 3H₂O
AlCl₃ + 3NaOH ⇒ Al(OH)₃ + 3NaCl
2. Al2O3 + 6HCl(конц.) → 2AlCl3 + 3H2O
3. AlCl3 + 3NaOH(разб.) → Al(OH)3↓ + 3NaCl