Achemical reaction is carried out in a closed container. the energy absorbed by the chemical reaction is 50 kj. what is the energy liberated from the air or the walls of the container?

a)50 kj
b)75 kj
c)25 kj
d)100 kj

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

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.

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?