Which of the following is an example of a molecule? (a) co₂ (carbon dioxide). (b) h₂o (water). (c) o₂ (oxygen in atmosphere). (d) naci (sodium chloride: table salt). ?

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

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.

Asolid that forms and separates from a liquid mixture is called