The addition of a `CaCl_(2)` crystal to a KCl crystal

Options

A. lowers the density of the KCl crystal
B. raises the density of the KCl crystal
C. does not affect the density of the KCl crystal
D. increases the Frenkel defects of the KCl crystal

Answer

A

Explanation

In KCl crystal, the `Ca^(2+)` from `CaCl_(2)` will replace `K^(+)` ions. One `Ca^(2+)` ion will replace two `K^(+)` which will lower the density.