making H2S gas!!! stink like hell!

finally the two kids came..we did the expt on generating H2S gas for their reaction..quite exciting lahz..but then it's darn smelly..i bought dry ice to cool the gas then the 'smart' pple threw in whole bunch on them where it's useless coz it's juz nt low enough to condense the gas..then i said:"dry ice nt cheap.u pay ahz?" then one of them said:"nvm he will pay", pointing to another onez..we changed to liquid nitrogen instead & it works..got see liquid in the collecting flask..overall we managed to conduct the experiment..but it's darn smelly..

H2S gas is actually as toxic as CO..it has the same effects as CO to bind to haemoglobin..faintz..anyway bascially i did the most of the job..but i made them do the 2nd time themselves..i think next time they can do it on their own, juz tt i need to be ard, watching at them..