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Science and Technology of the Environment

Summer Homework for new Chem Students

Found among Janeath's Tweets(@jnutification )

Top left, and then clockwise:
(1) A witch's brew of hot water, dry ice and a pine cone.
(2)Cobalt ion forming a transient blue complex with base.
(3)Ignition of magnesium with strange violet-line-camera effect.
(4) Mg and CO2 reacting to form magnesium carbonate.

Great dexterity and camera work by Antonino and Corey,respectively.
Thanks to Olivia's Mom, who bought the dry ice for wild English theatre.