Iandavies554's Shop
Iandavies554's Shop
4.0869 reviews

Hi all, I'm a Science and Chemistry specialist who has been teaching for over 20 years. I've put on free resources as well as over 50 cut-price but brill paid for resources. This is a your Science and Chemistry one stop shop! And its great!!!

ppt, 126.5 KB
ppt, 126.5 KB
This is a 2-3 lesson pwpt which helps explain diffusion
Has link to HCl and NH3 demo which help extend this work to include atomic masses and speed of diffusion.

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