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Question 18N.2.hl.TZ0.4d

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Date November 2018 Marks available [Maximum mark: 2] Reference code 18N.2.hl.TZ0.4d
Level hl Paper 2 Time zone TZ0
Command term Predict Question number d Adapted from N/A
d.
[Maximum mark: 2]
18N.2.hl.TZ0.4d

Properties of elements and their compounds can be related to the position of the elements in the periodic table.

(d)

Predict, giving your reasons, whether Mn2+ or Fe2+ is likely to have a more exothermic enthalpy of hydration.

[2]

Markscheme

Fe2+ AND smaller size/radius

OR

Fe2+ AND higher charge density ✔

 

stronger interaction with «polar» water molecules ✔

 

M1 not needed for M2.

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