I attach here a new video about supersaturated solutions to enhance the fact on how powerful is to show this funny aspect of chemistry as a great educational tool. Supersaturated solutions are in a metastable state so that any "disturbator" (crystal seeds or impurities for example) can easily makes the system fall down into a lower energy state as it happens in these experiments.
Wednesday, October 28, 2009
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Mi sa che c'รจ qualcosa che non va...non vedo ancora messaggi nella casella di posta. Eppure altre mail continuano ad arrivare. Magari prova su tercel@libero.it
ReplyDeleteGrazie
Teresa