A change in means that a chemical reaction has occurred. A. the energy and mass

B. the kinds of atoms involved

C. the properties and identity of the reacting substances

D. the energy and kinds of atoms of the reacting substances

What is the [oh-] in a solution with a poh of 3.90

Why are the trends and exceptions to the trends in ionization energy observed?

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.