1. differentiate between acids and bases on the basis of their ph values. give an example of each type. (written) check this for me- 2. part 1: name two elements that have the same properties as calcium (ca). (2 points) part 2: determine the number of protons, electrons, and neutrons present in an atom of sodium (na). explain how you determined your answer using complete sentences. my response: part 1: potassium and rubidium part 2: 11 electron 11 protons and 12 neutrons i found protons and electrons by looking at the atomic number and i found neutrons by subtracting the atomic number from the atomic mass.

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.