Hydrogen compounds are only required to contain carbon. However, most of them also contain hydrogen, and because it is the carbon-hydrogen bond which gives this class of compounds most of its particular chemical characteristics, carbon-hydrogen bonds are required in some definitions of the word "organic" in chemistry. Millions of hydrocarbons are known, and they are usually formed by complicated synthetic pathways that seldom involve elementary hydrogen. Compounds of hydrogen are often called hydrides, a term that is used fairly loosely. The term "hydride" suggests that the H atom has acquired a negative or anionic character, denoted H, and is used when
Bob (given name) include people associated with the various football codes, which include gridiron football, association football (soccer), rugby league, rugby union, Gaelic football, and Australian rules football. Bob (given name) Bob is a male given name or a hypocorism, usually of Robert. It is most common in English speaking countries such as the United States, Canada, Ireland, the United Kingdom, Australia, and New Zealand. It most likely originated from the hypocorism Rob, short for Robert. Rhyming names were popular in the Middle Ages, so "Richard" became "Rick", "Hick", or "Dick", "William" became "Will", "Gill", or "Bill", and "Robert" became "Rob", "Hob", "Dob",