What types of chemicals can kill you?

Well the chemical T.H.C. in Marijuana, can harmfully hurt you, but in Tabacoo there are over 200 known posions!!! anyways it gives you Black lungs, yellow teeth, hard to breath, Heart disease, Lung Cancer, Mouth Cancer, if you chew tabcoo you get mouth cancer, well there is a syrup at stores, drug stores, idk what its called, but within 10 minutes you throw up, and die! which please don't take that! and don't suck on berries, my friends in middle school do, the berries are very dangerous, even if you don't die, they can hurt you! Hmm, toothpaste if you eat it, its posiones, umm too many vitamans can kill you, swallowing lots of big, heard foods, Acid, well that's pretty much you get it hello my name is carry wood i luv u