Regents Materials: newyorkscienceteacher.com/sci/subjects/chem/review/index.html
Regents Materials and Higher: https://www.khanacademy.org/science/chemistry
Past Chemistry Regents and Answer Keys: https://www.nysedregents.org/chemistry/Â
Tyler Dewitt Chemistry Channel: https://www.youtube.com/@tdewitt451
Crash Course Chemistry: https://www.youtube.com/playlist?list=PL8dPuuaLjXtPHzzYuWy6fYEaX9mQQ8oGr