Chemistry HL helpful resources

Below are lists of useful videos, notes, and practice questions that can aid you in the IB Chemistry course. If you would like to add anything on this page that you have found useful please feel free to mention it in the comments section.
VIDEOS:
Below are useful YouTube channels
NOTES:
Below are useful websites containing chemistry notes
http://newburyparkhighschool.net/dogancay/ibchem/ibchemnotes.html
https://sites.google.com/a/nisbah.com/chemistry/IBDP-Chemistry/dp-chemistry
PRACTICE AND PAST EXAM QUESTIONS:
Below are useful websites containing practice questions and/or past exam questions