Here is the link to the oxidation slideshow we used today - https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0BzFUvVu_WNI_ZWUzZGQ0NDQtOGRlNC00YWM4LWFmNjAtODAzZmMzM2Y1NjQ3&hl=en Make sure that youre familiar with the keypoints on the last slide as we will be doing another practical relating to these later in the week.