Tuesday, 8 November 2022

Reversible reactions



 Take blue hydrated copper sulfate heat it to make white anhydrous copper sulfate. Add a little water observe the colour change and the het given out. Heat the blue copper sulfate and return to anhydrous copper sulfate and repeat. Some repeated it four time and were convinced it could go on for ever.

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Flame Tests

 One of the students' favourite experiments are flame tests and then identifying an unknown material.