hydrogen evolution

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• Hydrogen — This article is about the chemistry of hydrogen. For the physics of atomic hydrogen, see Hydrogen atom. For other meanings, see Hydrogen (disambiguation). ← hydrogen → helium …   Wikipedia

• Hydrogen economy — The hydrogen economy is a proposed system of delivering energy using hydrogen. The term hydrogen economy was coined by John Bockris during a talk he gave in 1970 at General Motors (GM) Technical Center.[1] Hydrogen advocates promote hydrogen as… …   Wikipedia

• hydrogen chloride — a colorless gas, HCl, having a pungent odor: the anhydride of hydrochloric acid. [1865 70] * * * ▪ chemical compound       (HCl), a compound of the elements hydrogen and chlorine, a gas at room temperature and pressure. A solution of the gas in… …   Universalium

• Hydrogen hypothesis — The hydrogen hypothesis is a model proposed by William Martin and Miklós Müller in 1998 that describes a possible way in which the mitochondrion arose as an endosymbiont within a prokaryote (an archaebacterium), giving rise to a symbiotic… …   Wikipedia

• Evolution der Dinosaurier — Dinosaurier Plastische Lebendrekonstruktion von Tyrannosaurus rex vor dem Frankfurter Senckenbergmuseum Zeitraum Mitteltrias bis Holozän (Gegenwart) …   Deutsch Wikipedia

• Stellar evolution — Life cycle of a Sun like star Stellar evolution is the process by which a star undergoes a sequence of radical changes during its lifetime. Depending on the mass of the star, this lifetime ranges from only a few million years (for the most… …   Wikipedia

• Formation and evolution of the Solar System — Artist s conception of a protoplanetary disk The formation and evolution of the Solar System is estimated to have begun 4.568 billion years ago with the gravitational collapse of a small part of a giant molecular cloud …   Wikipedia

• atmosphere, evolution of — Introduction  the development of Earth s (Earth) atmosphere across geologic time. The process by which the current atmosphere arose from earlier conditions is complex; however, evidence related to the evolution of Earth s atmosphere, though… …   Universalium

• History of Solar System formation and evolution hypotheses — Capture theory redirects here. For the solar capture theory, see this article s section on Solar System formation. For the lunar capture theory, see this article s section on lunar formation. Ideas concerning the origin and fate of the world date …   Wikipedia

• Oxygen evolution — is the process of generating molecular oxygen through chemical reaction. Mechanisms of oxygen evolution include the oxidation of water during oxygenic photosynthesis, electrolysis of water into oxygen and hydrogen, and electrocatalytic oxygen… …   Wikipedia

• Galaxy formation and evolution — The study of galaxy formation and evolution is concerned with the processes that formed a heterogeneous universe from a homogeneous beginning, the formation of the first galaxies, the way galaxies change over time, and the processes that have… …   Wikipedia