The decomposition of dinitrogen pentoxide, n2o5, to no2 and o2 is a first-order reaction. at 60°c, the rate constant is 2.8 × 10-3min-1. if a rigid vessel initially contains only n2o5 at a pressure of 125 kpa, how long will it take for the total pressure to reach 182 kpa?

Why are the trends and exceptions to the trends in ionization energy observed?

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.

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.