When I was in high school (4 1/2 decades ago), our chemistry teacher had the class do an experiment to generate chlorine gas. I kid you not. Two dozen 15-year olds and twelve lab stations with little test tubes puffing out tiny clouds of toxic fumes. Everyone started coughing and the teacher was yelling "OPEN THE WINDOWS!!!1!!" because of course no fume hoods. He evacuated us into the hallway and passed around a vial of ammonia for us to sniff to neutralize the gas. Then brilliantly stated "maybe next time I'll just do this as a demo" Those were the days amirite?
When I was in high school (4 1/2 decades ago), our chemistry teacher had the class do an experiment to generate chlorine gas. I kid you not. Two dozen 15-year olds and twelve lab stations with little test tubes puffing out tiny clouds of toxic fumes. Everyone started coughing and the teacher was yelling "OPEN THE WINDOWS!!!1!!" because of course no fume hoods. He evacuated us into the hallway and passed around a vial of ammonia for us to sniff to neutralize the gas. Then brilliantly stated "maybe next time I'll just do this as a demo" Those were the days amirite?