help! help! plz Describe simple experiments in support of the following. i) Electrons travel in straight lines. ii) Electron are negatively charged. iii) Electron have mass and energy. ​

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.

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

What is the lowest number energy level where a d sublevel is found