Chemistry with Sonic 2 accessible here:
http://www.newgrounds.com /portal/view/370431
Update---
To all the angry fanboy reviewers, I did not steal another author's idea to make this movie, nor have I ever heard of or seen that person's movie. Speaking of which, it's very sad that you bottom feeders, who hoard on the reviews like baboons with seeds for brains, are even vexing themselves over me supposedly stealing off someone who didn't exactly think up a fundamentally original idea in the first place. Sonic, especially sprite movies involving the character, are not original at the base. Also, tutorial movies involving popular subjects in science are bound to come across often, perhaps involving one or more popular video game characters as well. It's a shame really, and there's me thinking that the further spread of knowledge would be beneficial.
This might sound silly, a movie where Sonic demonstrates Chemistry principles, but that's what was intended. The idea is very much absurd to me, but I felt like doing it anyway. Only took me about 3 weeks or so to make anyway. Since this is a tutorial with a lot of reading, you'll probably find it boring if you don't want to learn anything else today.
Although I tried to make it simple, at some stages I probably made a bit too complicated, so for those who are familiar with some Chemistry will find this easier to understand. You don't need any prior knowledge, but I'm assuming that you would have some very basic knowledge of Chemistry at the lowest level in high school at least. It does not really matter though.
Lastly, sorry if the reading speed is too fast, I aimed to make it somewhat slower than my own.