First, this is HIGHSCHOOL Chemistry. This includes Gr 11 and Gr 12 material, these courses are usually a semester long. They can be used as refershers too. Second, its PREP for General Chemistry which is at intro level. Third, its important to note, it is for the most part, Inorganic Chemistry. Broadly Meaning chemistry that does not involve carbon-carbon bonds. Hydrogen is usually present but does have to be. i.e chloromethane. However, you cover organic (extremely basic; no rxn mechanisms). As a nurse you most likely will not need any chem higher than highschool level.At least that i know of ( although I have presued the hard sciences including chem). They may include a clinical chem, which is NOT science based, very different btw. Esp with regards to labs. Rest assure chemistry at the highschool level in my opinion is fun.. Yes work of course but very enjoyable. Your ref to reviewing bio tells me you may just be starting out in the sciences?? You DO NOT need to review bio at all. Math however is huge in chemistry. Its not calculus but very basic algebria. No vectors like physics. You may benefit from reviewing vectors for quantum mechanics portion. They don't teach that btw its a hugh help for determining polarity . The best study tips are your own lol everyone studies differently. Just keep on top of the concepts its a breeze. Happy studying.