Addition is a reaction in which the molecules of two or more substances unite without the formation of a by-product.
One of the hydrogen halides, it is used for the production of alkyl bromides.
A yellow-green toxic gas with a strong odour, one of the halogens.
Halogen elements are a group in the periodic table consisting of five chemically related elements, fluorine, chlorine, bromine, iodine, and astatine.
The lightest halogen, a pale yellow-green, toxic gas, extremely reactive. Its best known compound is teflon.
A solid, grey substance which sublimates when heated. Its solution in alcohol is called tincture of iodine, it is a disinfectant.
A solid, grey substance which sublimates when heated. Its solution in alcohol is called ´tincture of iodine´, it is a disinfectant.