Pretty easy, overall.
I'd recommend the Chemistry 130 course with R. Muftikian. She made the course really understandable by providing powerpoint slides and by doing plenty of examples in class. If you ask for another example, she'll continue to provide examples until you understand the material. If you study the notes, complete the homework, and practice with the worksheets and exams on the chemistry website, the class is a breeze. If you still don't understand, she offers office hours and responds quickly to email.
I learned basic chemistry concepts such as polarity, bonding, stoichiometry, metric conversations, and much more. This course helped me understand concepts that I didn't understand in my high school chemistry class.
Hours per week:
Advice for students:
In order to succeed in this course, you need to do all of the homework packets and online quizzes. To do well on the exams, I recommend using the practice worksheets, practice exams, and videos on the chemistry website. If you do all that, you should do well on all of the exams and quizzes.