2 Points
What was the plum-pudding atomic model?
A. A description of negative charges being suspended between balls
of positive charge
B. A description of electrons scattered inside the atom
C. A description of electrons orbiting the nucleus of the atom
D. A description of atoms being balls of positive charge with
electrons scattered outside

What happens when an acid dissolves?

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.

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?