3. the activation energy of an uncatalyzed reaction is 95 kj/mol. the addition of a catalyst lowers the activation energy to 55 kj/mol. assuming that the frequency factor remains the same, by what factor will the catalyst increase the rate of the reaction at 25°c?

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.

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false

Which element is least likely to undergo a chemical reaction