AP Chemistryeasymcq1 pt
What happens to the solubility of CaF₂ in a solution that already contains Ca²⁺?
A.It decreases
B.It increases
C.It is unchanged
D.It depends only on temperature
Explanation
Core Concept
The common ion Ca²⁺ raises the product [Ca²⁺][F⁻]² toward Ksp sooner, so less CaF₂ dissolves. Le Chatelier: the dissolution equilibrium shifts left.
Correct Answer
AIt decreases
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