1. When you're in chemistry class and you want to know if there's ammonia in your test tube, DON'T smell it. 2. In case you didn't interpret the pain in your nose right, DON'T smell again.
1. When you're in chemistry class and you want to know if there's ammonia in your test tube, DON'T smell it. 2. In case you didn't interpret the pain in your nose right, DON'T smell again.