I really need your to help with this one

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.

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?