Using the following values of pkb, select the strongest acid from those listed in the answers. a. c5h5n (pkb = 8.75) b. n2h4 (pkb = 5.77) c. c6h5nh2 (pkb = 9.37) d. nh3 (pkb = 4.75) e. c2h5nh2 (pkb = 3.19)

What is the maximum number of electrons that an atomic orbital can contain?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j