Help me on number 23 please and thank you

Water ionizes by the equation h2o(l)⇌h+(aq)+oh−(aq) the extent of the reaction is small in pure water and dilute aqueous solutions. this reaction creates the following relationship between [h+] and [oh−]: kw=[h+][oh−] keep in mind that, like all equilibrium constants, the value of kw changes with temperature.

How many atoms of oxygen are contained in 160 grams of n2o3

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f