Sarah is looking for a way to move her boat across the water without touching it directly. She included paperclips in the boat design so that the magnetic attraction between the paperclip and the magnet would pull the boat along the water's surface. Which statement is NOT an accurate representation of what is happening with Sarah's boat? A) The attraction between the boat and the magnet pulls the boat toward the magnet. B) As Sarah gets further from the boat with her magnet, the attraction will decrease. C) The attraction between the boat and the magnet pushes the boat away from the magnet. D) The more paperclips that are attached to the boat, the stronger the force of attraction to the magnet.

What? i don’t understand

Answerthis solution will not form a precipitateexplanationsolubility equilbrium:         pbf₂(s)  ⇄ pb²⁺(aq) + 2 f⁻(aq)the solubility product expression is    (we exclude solids from the equilibrium expression).now suppose we have the trial ion product q, which we can define as    then, we can interpret  q as the product of the concentration of the ions that we have and ksp as the product of the ion concentrations that are needed to form a saturated solution.if q > ksp, then that implies that there will be a surplus of ions that exceed the amount that is required to form a saturated solution. a precipitate will then form (the precipitate continually  forms until the surplus ions are removed and q is decreased to ksp's value).if q = ksp, the saturated solution that forms is barely saturated and the precipitate will be minimal.if q < ksp, then the ion concentration will not be enough to form a saturated solution (so no precipitate).using our information, we calculate the trial ion product:     since q = 2.7  × 10⁻⁸ < ksp =  4  ×  10⁻⁸, a precipitate will not form.

Ibelieve the answer is balance! hope my answer has you : )