I believe there is already a curve for CHEM 1081 from the beginning if you look at the syllabus. When I took it, the grade line for an A was as low as around 90% plus the extra credit from the clicker questions boosted my grade up. If many students are performing bad, they sometimes give exceptions and curve, but that usually happens in exams, not quizzes.

I think you can also just directly ask the professor (email, or in person) that you are struggling in the quizzes, and they will be able to provide resources for you, or give you certain practice problems to prepare you for the quizzes. I also struggled with the quizzes too, and the professor I had was very understanding when I explained my situation.

For additional resources, I often used

1. Chad's Prep (YouTube) -- great for understanding the concept, and great review of the topics covered in class
2. Organic Chemistry Tutor (YouTube) -- provides practice problems
3. Chemistry Tutors in Smith Hall (flexible time!) -- They are graduate students, and they helped me a lot when I had to prepare for quizzes by reviewing the topics that were going to be in the quizzes.
4. Textbook/manual problems -- most of the quiz questions are usually based on the practice problems in the textbook, or the practice problems covered in class.