chaos vs balagan

chaos and balagan both are nouns.

Word	Noun	Adjective	Verb	Adverb
chaos	Yes	No	No	No
balagan	Yes	No	No	No

As nouns, balagan is a hyponym of chaos; that is, balagan is a word with a more specific, narrower meaning than chaos:

chaos: a state of extreme confusion and disorder
balagan: a word for chaos or fiasco borrowed from modern Hebrew (where it is a loan word from Russian)

chaos (noun)	balagan (noun)
(physics) a dynamical system that is extremely sensitive to its initial conditions	a word for chaos or fiasco borrowed from modern Hebrew (where it is a loan word from Russian)
the formless and disordered state of matter before the creation of the cosmos
a state of extreme confusion and disorder