Suggest4 marksStandard
The thermal stability of the nitrates of the Group 2 elements increases down the group. Suggest an explanation for this trend in terms of the polarisation of the nitrate ion.
CAIE A Level Chemistry 9701 · Group 2
The thermal stability of the nitrates of the Group 2 elements increases down the group. Suggest an explanation for this trend in terms of the polarisation of the nitrate ion.
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Suggest means: Apply what you know to an unfamiliar situation. There may be more than one acceptable answer. Reason from the principle you have learned to the new context, and say which principle you are using.
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