а)NH₄I
NH₃ + HI =NH₄I
(NH₄)₂CO₃ + 2HI =2NH₄I + CO₂ + H₂O
б)Na₂CO₃
Na₂O + CO₂ = Na₂CO₃
2NaOH + CO₂ = Na₂CO₃ + H₂O
2NaHCO₃ = Na₂CO₃ + CO₂ + H₂O
Na₂S + CaCO₃ = Na₂CO₃ + CaS
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Answers & Comments
а)NH₄I
NH₃ + HI =NH₄I
(NH₄)₂CO₃ + 2HI =2NH₄I + CO₂ + H₂O
б)Na₂CO₃
Na₂O + CO₂ = Na₂CO₃
2NaOH + CO₂ = Na₂CO₃ + H₂O
2NaHCO₃ = Na₂CO₃ + CO₂ + H₂O
Na₂S + CaCO₃ = Na₂CO₃ + CaS
Verified answer
Б 2Na2O2+2CO2=2Na2CO3+O2