1. Electron flow during the electrophilic addition mechanism
To animate the sequence hold down an ‘advance slide’ key (eg space bar, enter or forward arrow). Take care to stop at the end or the presentation will automatically close!
To reverse any part of the sequence hold down a ‘reverse slide’ key (eg backspace or back arrow)

28. End
To run the mechanism backwards, hold down a ‘reverse slide’ key (eg backspace or back arrow)
Click here to go back to the beginning
Click here to go to an ‘animated gif’ of the same mechanism

29. electrophilic addition
HBr to any C=C double bond
click once to start the automatic animation which will loop until second click

30. References Original PowerPoint slides by Mike Thompson of Truro School
Adapted by Steve Lewis for the RSC