The elements nitrogen and oxygen are diatomic gases in their standard states. therefore, the standard enthalpies of formation of these elements are zero. when nitrogen and oxygen gases react to form one mile of no2, the enthalpy of the reaction is also zero. true or false?

Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (use the periodic table as necessary.) group most likely ionic charge # of valence electrons i +1 ii +2 iii +3 iv +4 or -4 v -3 vi -2 vii -1 viii 0

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.

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same