When the government announced it was bankrupt, pandemonium broke loose on Wall Street.
There was huge pandemonium coming from the room upstairs. There was pandemonium over Michael Jackson's 'THRILLER' video.
There was a pandemonium when the fish all jumped into the boats at the docks.
Use "that" in a restrictive clause, to specify a particular thing you are talking about, and use "which" in a nonrestrictive clause, to provide additional information about something. The "which"...