This blog will cover and explain the specification for Edexcel triple science course 2013 Chemistry. Hope it helps :)
the pictures dont work
The picture doesn't work
https://www.youtube.com/watch?v=fuinLNKkknI^ this explains all you need
https://www.youtube.com/watch?v=fuinLNKkknI^ this is really good
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That was not nice, not nice at all.
http://web.pdx.edu/~ruzickaa/G410/Sears-Dodd/graph-diamond.gif here is the link to the photo