5 Phy – We looked at diffraction and interference patterns. I was asked whether it is possible to ‘stop’ light and here’s the answer to that question.

L6 Che 1 – We went over the first part of our notes on 2.1 ‘Intermediate bonding and polarity’ and I hope your all OK with the concept of electronegativity, if not, do ask because it’s important!

5 Che – We looked at electrolysis in more detail and I set you some calculations for prep, make sure you convert time into seconds when doing those questions, unless you want your answers to be hideously wrong!


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