To prepare for CHEM 1412 (General Inorganic Chemistry 2) after a two-year gap since completing CHEM 1411, reviewing key concepts from the previous course is essential. While some participants suggest re-reading chapters from the old textbook, the original poster no longer has access to it. They are encouraged to check their new school's library for a copy or similar resources. Utilizing old exam reviews has proven helpful, as it jogs memory on previously learned topics. Additionally, external resources such as lecture notes from reputable institutions like MIT can provide valuable supplementary material for review. The focus remains on identifying specific topics that are frequently encountered in CHEM 1412 to ensure a solid foundation for the upcoming course.