quick bite

i had a nice dream last night! and it involved some chemistry experiment. there was a big round-bottomed flask containing black solution. someone dropped in something which caused a 'pop' sound and then the black solution effervesced until it was decolourised. there were some clear crystals could be seen at the bottom of the flask. somehow, it felt like snape's dungeons. i didn't do a test for the gas during the effervescence. fail!