What evidence indicates that a reaction has occurred? (Select all that apply.)

a. The temperature decreased.
b. A solid brown product formed.
c. The temperature increased.
d. A gas formed.
e. An explosion occurred.

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.

Summarize possible ways in which phases of matter could combine to form a solution.

Stage in which a star’s outer layers have started to cool and grow outward?