When aqueous sodium thiosulfate, $\text{Na}_2\text{S}_2\text{O}_3$, is mixed with dilute hydrochloric acid, a yellow sulfur precipitate is produced. $\text{Na}_2\text{S}_2\text{O}_3(\text{aq}) + 2\text{HCl}(\text{aq}) \rightarrow 2\text{NaCl}(\text{aq}) + \text{H}_2\text{O}(\ell) + \text{S}(s) + \text{SO}_2(g)$. The precipitate appears more rapidly when the reactants are heated. Which statements account for this result?
- A1 and 2
- B1 and 3
- C1 only
- D2 and 3