50 points!

When a sodium thiosulfate solution (Na2S2O3(aq)) is added to hydrochloric acid, sulfur is formed.

1. What would you observe during the reaction? How could you set up the experiment to measure the reaction time for a given combination of thiosulfate and acid solutions?

2. What other products are formed?

3. Apart from heating it, how else could you speed up the reaction? How would this work?