Organic Chemistry Worksheets and Lecture Notes The complete set of worksheets & lecture notesDownloadable PDF practice quizzes, worksheets, and lecture notes. Enjoy. Orgo 1/ Semester 1/ Quarter 1: 118A Worksheet Access Orgo 1&2/ Semester 1&2/ Quarter 2: 118B Worksheet Access Orgo 2/ Semester 2/ Quarter 3: 118C Worksheet Access