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Using the background theory provided, choose the set of equations that best describe the reaction between the sodium carbonate and hydrochloric acid in experiment 1.Question 2Select one:a.     (1)  Na2CO3 (s) →  2Na+ (aq)  + CO32- (aq)   (2)  HCl (g) → H+ (aq) + Cl- (aq)   (3) 2H+ (aq) + CO32- (aq)  → H2CO3 (aq)   (4)  H2CO3 (aq)  →  CO2 (g)  + H2O (l)   b.   (1)  HCl (g) → H+ (aq) + Cl- (aq)    (2)   NaHCO3 (aq) → Na+ (aq) + HCO3- (aq)   c.    (1)  HCl (g) → H+ (aq) + Cl- (aq)   (2)  NaOH (s) → Na+  + OH-   (3)  Na+ (aq) + OH- (aq) + H+ (aq) + Cl- (aq)  →  NaCl (aq) + H2O (aq)   d.   (1)  Na2CO3 (s) →  Na+ (aq)  + CO3- (aq)   (2)  HCl (g) → H+ (aq) + Cl- (aq)   (3) H+ (aq) + CO3- (aq)  → HCO3- (aq)

Question

Using the background theory provided, choose the set of equations that best describe the reaction between the sodium carbonate and hydrochloric acid in experiment 1.Question 2Select one:a.     (1)  Na2CO3 (s) →  2Na+ (aq)  + CO32- (aq)   (2)  HCl (g) → H+ (aq) + Cl- (aq)   (3) 2H+ (aq) + CO32- (aq)  → H2CO3 (aq)   (4)  H2CO3 (aq)  →  CO2 (g)  + H2O (l)   b.   (1)  HCl (g) → H+ (aq) + Cl- (aq)    (2)   NaHCO3 (aq) → Na+ (aq) + HCO3- (aq)   c.    (1)  HCl (g) → H+ (aq) + Cl- (aq)   (2)  NaOH (s) → Na+  + OH-   (3)  Na+ (aq) + OH- (aq) + H+ (aq) + Cl- (aq)  →  NaCl (aq) + H2O (aq)   d.   (1)  Na2CO3 (s) →  Na+ (aq)  + CO3- (aq)   (2)  HCl (g) → H+ (aq) + Cl- (aq)   (3) H+ (aq) + CO3- (aq)  → HCO3- (aq)

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Solution

The correct set of equations that describe the reaction between sodium carbonate and hydrochloric acid is option a.

Here's why:

a. (1) Na2CO3 (s) → 2Na+ (aq) + CO32- (aq) This equation represents the dissociation of sodium carbonate in water.

(2) HCl (g) → H+ (aq) + Cl- (aq) This equation represents the dissociation of hydrochloric acid in water.

(3) 2H+ (aq) + CO32- (aq) → H2CO3 (aq) This equation represents the reaction between the hydrogen ions from the hydrochloric acid and the carbonate ions from the sodium carbonate to form carbonic acid.

(4) H2CO3 (aq) → CO2 (g) + H2O (l) This equation represents the decomposition of carbonic acid into carbon dioxide and water.

These four equations together describe the overall reaction between sodium carbonate and hydrochloric acid.

This problem has been solved

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