Year 13 Chemistry
Transition elements
Electron configurations of d-block elements and ions, complex ions, ligands and coordination number, shapes, colour, variable oxidation states, catalysis and ligand substitution.
Transition elements free practice
No timer and no account needed. Check each answer as you go, then read the explanation.
1. Aqueous copper(II) sulfate is treated with aqueous ammonia, first a few drops and then in excess. What is observed?
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