The Pearson website does not have answers for Mastering Chemistry. It does, however, provide hints and feedback that will help you to master the content with a subscription or access code, according to Pearson.
In order to access the hints and other helpful information from Pearson, an email, a course code, and an access code are required. The course code is provided by your professor and the access code will come with the qualifying textbook if purchased new or can be purchased using a credit card. In addition to answers, the Mastering Chemistry website will provide students with tutorials, practice tests and quizzes, and other interactive learning modules.