The diagram illustrates the apparatus used to determine the rate of a chemical reaction. For which reaction can this apparatus be used to measure the rate?
- A$2\text{Na} + \text{Cl}_2 \rightarrow 2\text{NaCl}$
- B$\text{NaOH} + \text{HCl} \rightarrow \text{NaCl} + \text{H}_2\text{O}$
- C$\text{Na}_2\text{O} + 2\text{HCl} \rightarrow 2\text{NaCl} + \text{H}_2\text{O}$
- D$\text{Na}_2\text{CO}_3 + 2\text{HCl} \rightarrow 2\text{NaCl} + \text{H}_2\text{O} + \text{CO}_2$