So I was bored and wanted to do something constructive and I found my Chemistry teacher's notes for my O-Level studies.
And since the formats of IGCSE and O-Level aren't too different, I've linked this in the IGCSE section too. ^_^ I studied from these notes, in many ways they were superfluous and out of course but nothing was useless because it helped understand the course. So here they are if you wanna give them a try.