What type of literary devices are used in "Arise fair sun and kill the envious moon" and "Parting is such sweet sorrow"?They are both in Act II.

Personification is used in "Arise fair sun and kill the envious moon" as Shakespeare was giving human actions to inanimate objects, the sun and the moon.  "Parting is such sweet sorrow" is antithesis - "sweet" and "sorrow" are antithetical, or opposite to one another, which was a common literary device used by Shakespeare to give more emphasis to the words he is contrasting.

Check the links below for more information on both personification and antithesis, as well as other literary devices.