Which compound is an acid?
A. HNO3
B. NH3
C. C2H4
D. KCl

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.

This is a mixture that has the same composition throughout.

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one