Clement Ooi: Copper Sulfate

Cyanide is made up of one atom of carbon and one atom of nitrogen. Cyanide has the chemical symbol CN. It is found in apple seeds, plum pips and apricot seeds. Eating a apple seed or a plum pip will not cause harm, but eating an apricot seeds will cause diarrhea. Hydrogen will react with cyanide to form hydrogen cyanide gas, and a gas mask must be worn, to avoid inhaling the poisonous gas. However, cyanide also has its uses. It can be used in mining, medicine, fishing, or as a food additive. However, fishing using cyanide is illegal and dangerous.