There are no make-up exams but for excused absences the final exam may substitute for the missed test. The final exam will be cumulative. You will have a maximum of two points for the CAtest and it will be determined based upon your percentage scores on the two tests. Studying Read ahead in the text. Other chemistry texts at the same level are in the library and it is good to read some from them.
Old tests are on the course web page.
After you have taken the old tests, grade yourself using the book and your notes and try to understand what you have missed. Get a good night's sleep before each test. A very helpful CD is available with the text. Other Taking the course online you will have to be very conscientious about scheduling daily study time for the course. The dropout rate decreases with age, probably because the older people are usually more disciplined in their habits and more serious about the courses.