The apparatus illustrated is used to determine the rate of a reaction. Which equation shows a reaction whose rate can be measured with this apparatus?
- A$\text{Mg}(s) + \text{2HCl}(aq) \rightarrow \text{MgCl}_2(aq) + \text{H}_2(g)$
- B$\text{HCl}(aq) + \text{NaOH}(aq) \rightarrow \text{NaCl}(aq) + \text{H}_2\text{O}(l)$
- C$\text{Fe}(s) + \text{CuSO}_4(aq) \rightarrow \text{Cu}(s) + \text{FeSO}_4(aq)$
- D$\text{2Na}(s) + \text{Br}_2(l) \rightarrow \text{2NaBr}(s)$