Question

Na->Na2O2->NaOH->NaHCO3->CO2->Ba(HCO3)2->BaCO3

Answer 1

1) 2Na + O₂ = Na₂O₂
2) 2Na₂O₂ + H₂O = 4NaOH + O₂
3) NaOH + H₂CO₃ = NaHCO₃ + H₂O
4) NaHCO₃ + HCl = NaCl + CO₂ + H₂O
5) CO₂ + Ba(OH)₂ = Ba(HCO₃)₂
6) Ba(HCO₃)₂ = BaCO₃ + H₂O + CO₂

Answer 2

Chemical Reactions in the Given Sequence

The given sequence of chemical reactions is as follows:

1. Na -> Na2O2 2. Na2O2 -> NaOH 3. NaOH -> NaHCO3 4. NaHCO3 -> CO2 5. CO2 -> Ba(HCO3)2 6. Ba(HCO3)2 -> BaCO3

Let's break down each reaction and explain what is happening in each step.

1. Na -> Na2O2: - In this reaction, sodium (Na) reacts with oxygen (O) to form sodium peroxide (Na2O2).

2. Na2O2 -> NaOH: - Sodium peroxide (Na2O2) reacts with water (H2O) to produce sodium hydroxide (NaOH).

3. NaOH -> NaHCO3: - Sodium hydroxide (NaOH) reacts with carbon dioxide (CO2) to form sodium bicarbonate (NaHCO3).

4. NaHCO3 -> CO2: - Sodium bicarbonate (NaHCO3) decomposes when heated, producing carbon dioxide (CO2) as one of the products.

5. CO2 -> Ba(HCO3)2: - Carbon dioxide (CO2) reacts with barium hydroxide (Ba(OH)2) to form barium bicarbonate (Ba(HCO3)2).

6. Ba(HCO3)2 -> BaCO3: - Barium bicarbonate (Ba(HCO3)2) decomposes when heated, resulting in the formation of barium carbonate (BaCO3).

Summary

To summarize the given sequence of reactions: - Sodium (Na) reacts with oxygen (O) to form sodium peroxide (Na2O2). - Sodium peroxide (Na2O2) reacts with water (H2O) to produce sodium hydroxide (NaOH). - Sodium hydroxide (NaOH) reacts with carbon dioxide (CO2) to form sodium bicarbonate (NaHCO3). - Sodium bicarbonate (NaHCO3) decomposes when heated, producing carbon dioxide (CO2). - Carbon dioxide (CO2) reacts with barium hydroxide (Ba(OH)2) to form barium bicarbonate (Ba(HCO3)2). - Barium bicarbonate (Ba(HCO3)2) decomposes when heated, resulting in the formation of barium carbonate (BaCO3).

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