Which of the following equations represents the precipitation reaction that occurs when solutions of ammonium chloride and iron(III) nitrate are mixed?

Two mixtures are added into one flask at 25 °C, one mixture contains 0.55 mL of 0.75 M BaF₂ and another 0.25 mL of 1.3 M Mg(OH)₂. K_sp of Magnesium Fluoride, MgF₂, is 7.4 x 10⁻⁹. Identify the correct option.

a) MgF₂ solid will form

b) MgF₂ solid forms, along with Mg⁺² and F⁻ ions

c) solution is unsaturated, precipitate does not form

d) solution is saturated, precipitate forms

Ca1OH22 has a Ksp of 6.5 * 10-6. (b) If 50 mL of the solution from part (a) is added to each of the beakers shown here, in which beakers, if any, will a precipitate form? In those cases where a precipitate forms, what is its identity? [Section 17.6]