Monoxide PbO are amphoteric. Monoxide A monoxide is any oxide containing just one atom of oxygen in the molecule. For example, Potassium oxide (KO), has only one atom of oxygen, and is thus a monoxide. Water (HO) is also a monoxide; see dihydrogen monoxide hoax. A well known monoxide is carbon monoxide (CO); see carbon monoxide poisoning. Most of the members of the Periodic Table form oxides when oxidized. There are two main types of oxides: monoxides and dioxides. Monoxides (generally MO) such as silicon monoxide (SiO) only exist at high temperatures. Among monoxides, CO is neutral, GeO is distinctly acidic,
Dihydrogen bond a protic acid and the borane end is hydridic. The resulting B−HH−N attractions stabilize the molecule as a solid. In contrast, the related substance ethane, HCCH, is a gas with a boiling point 285 °C lower. Because two hydrogen centers are involved, the interaction is termed a dihydrogen bond. Formation of a dihydrogen bond is assumed to precede formation of H from the reaction of a hydride and a protic acid. A very short dihydrogen bond is observed in NaBH·2HO with H−H contacts of 1.79, 1.86, and 1.94 Å. Protonation of transition metal hydride complexes is generally thought to occur