Amazon.com description: Product Description: ACE Organic is a Web-based program developed specifically for instructors and students of introductory organic chemistry. Dr. Robert B. Grossman and Dr. Raphael Finkel at the University of Kentucky created ACE Organic to solve a fundamental problem: students need practice drawing chemical structures and tutorial feedback. With ACE Organic, students use a powerful drawing tool to draw structures. ACE Organic evaluates student responses and provides feedback to help them get to the correct answer without giving it away. ACE Organic offers: / The most powerful and easy to use chemistry drawing program / Tutorial feedback guiding students to the right answer without giving it away / Thousands of questions spanning the organic chemistry curriculum / The most advanced question types including mechanisms and conformations