Question

NaCl → Na → NaOH → NaHCO3 → Na2CO3

Answer 1

Объяснение:

2NaCl->2 Na+Cl2

2Na+2H2O=2NaOH+H2

NaOH+CO2+=NaHCO3

2NaHCO3=Na2CO3+H2O+CO2

Answer 2

The chemical reactions you've listed represent a series of transformations involving sodium chloride (NaCl) that ultimately lead to sodium carbonate (Na2CO3). Let's break down each step:

1. NaCl → Na: This is a simple ionic dissociation reaction, where sodium chloride (NaCl), a salt, dissociates into its constituent ions in water: NaCl (s) + H2O (l) → Na+ (aq) + Cl- (aq)

2. Na → NaOH: Sodium ions (Na+) react with hydroxide ions (OH-) in water to form sodium hydroxide (NaOH): Na+ (aq) + OH- (aq) → NaOH (aq)

3. NaOH → NaHCO3: Sodium hydroxide (NaOH) reacts with carbon dioxide (CO2) to produce sodium bicarbonate (NaHCO3), water (H2O), and heat: NaOH (aq) + CO2 (g) → NaHCO3 (aq) + H2O (l)

4. NaHCO3 → Na2CO3: Sodium bicarbonate (NaHCO3) decomposes when heated, forming sodium carbonate (Na2CO3), carbon dioxide (CO2), and water (H2O): 2 NaHCO3 (s) → Na2CO3 (s) + CO2 (g) + H2O (g)

So, starting from sodium chloride (NaCl), the reactions proceed as follows: NaCl (s) + H2O (l) → Na+ (aq) + Cl- (aq) Na+ (aq) + OH- (aq) → NaOH (aq) NaOH (aq) + CO2 (g) → NaHCO3 (aq) + H2O (l) 2 NaHCO3 (s) → Na2CO3 (s) + CO2 (g) + H2O (g)

The final product is sodium carbonate (Na2CO3).