When KCl dissolves in water A) the Clions are attracted to dissolved K + ions. B) the Clions are attracted to the partially negative oxygen atoms of the water molecule. C) the K + ions are attracted to Clions on the KCl crystal. D) the Kions are attracted to the partially negative oxygen atoms of the water molecule. E) the Kions are attracted to the partially positive hydrogen atoms of the water molecule.

Question

Chemistry

Grace Eaton

26 May, 20:04

When KCl dissolves in water A) the Clions are attracted to dissolved K + ions. B) the Clions are attracted to the partially negative oxygen atoms of the water molecule. C) the K + ions are attracted to Clions on the KCl crystal. D) the Kions are attracted to the partially negative oxygen atoms of the water molecule. E) the Kions are attracted to the partially positive hydrogen atoms of the water molecule.

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Iliana · Answer 1

D) the K ions are attracted to the partially negative oxygen atoms of the water molecule.

Explanation:

Water molecules are electrically neutral but their geometry makes them polarisable, that is, positive and negative charges are placed opposite each other. This property causes the ions of K + and Cl - to separate under the strongest attraction of water molecules and negative oxygen atoms to partially attract the ions of K+. This process continues until the salt is completely dissolved.