Help pls asap I would really appreciate it!!

What are transitions between a liquid and a solid called? identify which way they are transitioning

Is it safe to take 450mg of diphenhydramine hydrochloride?

Which of these statements describes the size of an atom? a. an atom is larger than a sheet of aluminum foil. b. an atom is small but can be seen with just our eyes. c. an atom is the size of a plastic building block. d. an atom is tiny and cannot be seen without magnification.