Experiment reflection- Forming compounds

This experiment is special in it's own way as it allows us to investigate the formation of compounds by reacting 2 elements, reacting an element and a compound and reacting 2 compounds.
It was very useful to me since, it isn't common to do such experiments. It's not really a D.I.Y experiment where it can be done easily but it required a lot of explanation. Though it most likely can't be done again, I hope it can be done again.