The atomic model that describes an atom as a spherical object containing a certain number of electrons trapped in a mass of positive charge is often called the model. help

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.

Avariable that is not being directly tested during an experiment should be

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?