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When looking at the equilibrium between calcium fluoride and its aqueous ions, what could be added...

When looking at the equilibrium between calcium fluoride and its aqueous ions, what could be added to solution to promote precipitation of calcium fluoride?

CaF2(s)↽−−⇀Ca2+(aq)+2F−(aq)

Select all that apply:

  • Extra calcium ions

  • Extra fluoride ions

  • Extra calcium fluoride

  • None of the above

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