The correct balanced equation for the dissociation of calcium chloride is [tex]CaCl_2 (s) --- > Ca^{2+} (aq) + 2Cl^- (aq)[/tex]. Option D.
What is dissociation?
Dissociation in chemistry refers to the process whereby a compound reversibly breaks down to its constituent elements (usually in ion forms) within a solution.
The constituent elements in calcium chloride are calcium and chlorine. Calcium ion is written as [tex]Ca^2^+[/tex] while chlorine ion is written as [tex]Cl^-[/tex]. Calcium chloride itself is written as [tex]CaCl_2[/tex].
Thus, the equation of dissociation of calcium chloride in water can be summarized as:
[tex]CaCl_2 (s) --- > Ca^{2+} (aq) + 2Cl^- (aq)[/tex]
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