How much water is needed to dissolve 30g or Pb(NO3)2 at 40.0C answer the question? NO BOTS ALLOWED

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.

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?