Some resoruces to help, not all these are mine so I bundled all the items I used and say thanks to those whose work I stole.
Discusses fractional distillation. I run the activity by making a 'column', out of two lines of tables, then give the pupis a boiling point. They enter the column from base, then move up to their condensing point.
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Excellent, thank you for keeping it free.
excellant, you saved my time, thanks a lot
Thank you, excellent resources!
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