Please answer the following questions for a Single Replacement Reaction of Magnesium and HCl and water, plus a flaming splint. "Once submerged, the test tube had lots of bubbles forming inside as well as going out of it; the HCl in the test tube had completely reacted; Magnesium strip was still in the rubber stopper."

1. What gases could potentially be produced from hydrochloric acid (HCl)? Which gas was actually produced?

2. Why did the splint need to be tilted at a 45-degree angle?

a. Write a balanced equation for the reaction initiated by the burning splint.

b. Classify the reaction initiated by the burning splint.

4. Write a balanced equation for the reaction of magnesium with hydrochloric acid.