OWL (24 months) Printed Access Card for General, Organic and Biochemistry

Packaged with the textbook, this printed access card gives you access to OWL Online Web Learning. OWL reduces study time and helps you improve your grades on tests and exams. This powerful Online Web Learning system is the only one specifically designed to support mastery learning enabling you to work as long as you need using instantaneous feedback to master each chemical concept and skill. OWL has already helped hundreds of thousands of students master chemistry through tutorials, interactive simulations, and algorithmically generated homework questions that provide instant answer-specific feedback.