Answer to Question #178780 in Chemistry for Karley Eilts

Question

Write the dissociation reactions of the following substances.

a) MgCl2

b)KF

c)BaNO3

Answer 1

Solution:

a) Magnesium cloride (MgCl₂) is highly soluble in water.

In water it dissociates to ions: magnesium ion (Mg²⁺) and two cloride ions (Cl^-).

MgCl₂(aq) → Mg²⁺(aq) + 2Cl^-(aq)

b) Potassium fluoride (KF) is highly soluble in water.

In water it dissociates to ions: potassium ion (K⁺) and fluoride ion (F^-).

KF(aq) → K⁺(aq) + F^-(aq)

c) Barium nitrate (Ba(NO₃)₂) is highly soluble in water.

In water it dissociates to ions: barium ion (Ba²⁺) and two nitrate ions (NO₃^-).

Ba(NO₃)₂(aq) → Ba²⁺(aq) + 2NO₃^-(aq)