1. what is happening to the electrons in a covalent bond? 2. what type of elements form covalent bonds?
3. describe what’s happening in the potential energy graph as the 2 nuclei are moved closer together?
4. where are atoms the most stable?

Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 × 10−4 .