She's pretty hard to follow, but just read the textbook and you'll be fine for her quizzes/exams. She gives A LOT of bonus points when she sees that most of her students are failing her tests, which is good. She's DEFINITELY easier than other chemistry teachers during the year, so take her during the summer. She's super nice and really cares about preparing her students for future chem classes. I got a A- (her final dropped me by 8% :[), and overall, I put a moderate level of effort into the class.
Ruiz-Silva is an awesome professor. She lectures everything that is expected of the student to know. The problem is, she lectures at a rapid pace. At times during this course all I did was write but not understand. Other than that I would recommend her. She always has hand outs and she is always willing to help if you need it.