Match the vocabulary word with its definition. match the items in the left column to the items in the right column.

1. mass per unit volume
inorganic
2. resistance of a material to being scratched
organic
3. compounds that contain carbon
density
4. compounds that do not contain carbon
hardness

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.

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

Complete each row of the table below by filling in the missing prefix or missing exponent.