What is a homogeneous catalyst?
Catalysts speed up reactions by providing an alternative pathway for the reaction with a lower activation energy, Ea, and the
Author: Sarah Parkes
How does electromagnetic radiation affect molecules?
The energy of molecules is quantised just as it is in atoms. When a molecule absorbs a photon of electromagnetic
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Explaining the electrolysis of molten ionic salts
Electrolysis is a non-spontaneous chemical process powered by electrical energy. The reactions happening at the electrodes in the electrolysis of
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Revise like a pro: how to make the most of past papers!
Past papers and mark schemes are super useful resources that you should be using throughout your A level course, not
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Flashcards are the ultimate study tool
if you know how to use them 😳 We all know how to make a flashcard. Question on one side,
Using transition metal ions as catalysts
In the reaction between peroxodisulphate ions and iodide ions, the iodide ions are oxidised to iodine whilst the peroxodisulphate ions
Why are transition metal compounds coloured?
Virtually all transition metal compounds are coloured, a consequence of the way the 3d orbitals in the transition metal ion
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Hacks to supercharge your learning
Coffee! Just kidding … In last month’s newsletter we saw that our brains learn by making mistakes. The harder you struggle to retrieve
Explaining the redox behaviour of transition metals
Much of the chemistry of transition metal ions is a consequence of the fact that the 3d and 4s orbitals
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