Aşağıdaki çiftlerden hangilerinde moleküller arası hidrojen bağı görülür? a) Kloroform, CHCl3 ve trimetilamin, (CH3)3N

b) Etanol, CH3CH2OH ve pentan, CH3(CH2)3CH3

c) Polietilen glikol, (CH2-CH2-O)n ve metanol, CH3OH

Какая из следующих пар показывает межмолекулярные водородные связи?

а) Хлороформ, CHCl3 и триметиламин, (CH3) 3N

б) Этанол, CH3CH2OH и пентан, CH3 (CH2) 3CH3

в) Полиэтиленгликоль (CH2-CH2-O) n и метанол, CH3OH

Answers are 1,2,4 its correct on edgenuity.

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.