[youtube http://www.youtube.com/watch?v=videoseries?list=PL_1WVGjLTYqI15kDhxpHkFEfDyCA2Qac0&w=640&h=360]
[youtube http://www.youtube.com/watch?v=videoseries?list=PLGYKyocXgHJI7YMxW6uTktsFrvscbczyN&w=640&h=360]
[youtube http://www.youtube.com/watch?v=videoseries?list=PLGYKyocXgHJIS-QWY64xuJ2nhS9i9qH9P&w=640&h=360]
[youtube http://www.youtube.com/watch?v=videoseries?list=PLu5xRREO5kj-p8_Bb9hlHr102k-3LEgdT&w=640&h=360]
[youtube http://www.youtube.com/watch?v=videoseries?list=PLrvNoIltdG5jMyq9ohM312_tHD3F1eGq2&w=640&h=360]
Mole, masse molaire et masse moléculaire.
[youtube http://www.youtube.com/watch?v=videoseries?list=PLGYKyocXgHJL-78Iis1wAmX7iMLdmLeWR&w=640&h=360]
[youtube http://www.youtube.com/watch?v=videoseries?list=PLGYKyocXgHJK8X26ZGNYr3Vt2buXo6Ssa&w=640&h=360]
[youtube http://www.youtube.com/watch?v=iSXArAK16Bc?list=PLGYKyocXgHJJ7X3Z4SoulwxeVKVdN3JqD&w=640&h=360])
[youtube http://www.youtube.com/watch?v=videoseries?list=PLGYKyocXgHJKDrxm31pEA7punC7gaz6mz&w=640&h=360])
[youtube http://www.youtube.com/watch?v=MvbCjPZg3Ig?rel=0&w=480&h=360])
Le meilleur des cours en ligne