Textbook question

<p>When purchasing a textbook that comes with a computer disk, do the professors require use of the disk or is this just for extra practice? DD is taking chemistry in the fall and I would rather buy used but that would mean the license for the disk would already be used. Any advice?</p>

<p>You’ll need the access code for assignments and such. It can usually be purchased at the Supe or online as a separate purchase.</p>