The Ksp of CaF2 is 1.5×10-10. What is the molar solubility of CaF2 in a solution of (4.6x10^-3)-M CaCl2?

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that