Final answer:
The dwarf planet with a 3:2 resonance with Neptune and five satellites including Charon, Hydra, and Nix is Pluto.
Step-by-step explanation:
The dwarf planet discovered by Clyde Tombaugh, which shares a 3:2 resonance with Neptune and has five satellites named Charon, Hydra, and Nix, with two more satellites discovered in 2012, is Pluto. This dwarf planet is part of the category of trans-Neptunian objects (TNOs), spanning beyond the orbit of Neptune in an area of space known as the Kuiper belt. As per the attributes mentioned about the dwarf planet with five satellites, Pluto matches the description.