What occurs when a sample of CO2(s) changes to CO2(g)?

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.

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Name the element in group 17, period 2. (periodic table)