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STMSN
@STMSN
August 2021
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Напишите уравнение реакций с помощью которых можно осуществить следующие превращения: NaOH->Na2CO3->NaHCO3->Na2CO3->CO2
Zn->ZnO->Zn(OH)2->NaZnO2
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dec77cat
2NaOH + CO₂ = Na₂CO₃ + H₂O
Na₂CO₃ + CO₂ + H₂O = 2NaHCO₃
NaHCO₃ + NaOH = Na₂CO₃ + H₂O
Na₂CO₃ + 2HCl = 2NaCl + CO₂↑ + H₂O
2Zn + O₂ = 2ZnO
ZnO + 2HCl = ZnCl₂ + H₂O
ZnCl₂ + 2NaOH = Zn(OH)₂↓ + 2NaCl
Zn(OH)₂(т) + 2NaOH(т) t°C= Na₂ZnO₂ + 2H₂O↑
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Answers & Comments
Na₂CO₃ + CO₂ + H₂O = 2NaHCO₃
NaHCO₃ + NaOH = Na₂CO₃ + H₂O
Na₂CO₃ + 2HCl = 2NaCl + CO₂↑ + H₂O
2Zn + O₂ = 2ZnO
ZnO + 2HCl = ZnCl₂ + H₂O
ZnCl₂ + 2NaOH = Zn(OH)₂↓ + 2NaCl
Zn(OH)₂(т) + 2NaOH(т) t°C= Na₂ZnO₂ + 2H₂O↑