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Lacroix, Jorge Gurría. El desagüe del valle de México durante la época novohispana. No. 19. UNAM, 1978. Maldonado Aranda, Salvador. "Efectos perversos de las políticas hidráulicas en México: desagüe residual del Valle de México y la creación de un distrito de riego." Nueva antropología 19.64 (2005): 75–97. Manuel, Perló.
In coordination chemistry, a coordinate covalent bond, [1] also known as a dative bond, [2] dipolar bond, [1] or coordinate bond [3] is a kind of two-center, two-electron covalent bond in which the two electrons derive from the same atom.
A covalent bond forming H 2 (right) where two hydrogen atoms share the two electrons. A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms.
The hydrogen of the donor is protic and therefore can act as a Lewis acid and the acceptor is the Lewis base. Hydrogen bonds are represented as H···Y system, where the dots represent the hydrogen bond. Liquids that display hydrogen bonding (such as water) are called associated liquids.
Water (H 2 O) is a polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent hint of blue.It is by far the most studied chemical compound [20] and is described as the "universal solvent" [21] and the "solvent of life". [22]
In hydrology, bound water, is an extremely thin layer of water surrounding mineral surfaces.. Water molecules have a strong electrical polarity, meaning that there is a very strong positive charge on one side of the molecule and a strong negative charge on the other.
The covalent radius, r cov, is a measure of the size of an atom that forms part of one covalent bond.It is usually measured either in picometres (pm) or angstroms (Å), with 1 Å = 100 pm.
Replica of the Salto del Agua Fountain. After his arrival in the Aztec empire, Hernán Cortés discovered the economic and political importance of the Chapultepec aqueduct. He took advantage of the city's dependence on the aqueduct and blocked the fresh water supply, eventually destroying it.