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The New Hampshire Division of Vital Records Administration, or NHDVRA, is a division within the New Hampshire Department of State, responsible for the administration and proper archival of vital records and certificates, such as birth certificates, death certificates, marriage certificates among other important documents. [1]
The New Hampshire Division of Archives and Records Management, or NHDARM, is a division within the New Hampshire Department of State, responsible for the proper management and archival of other agencies' records and for the preservation of historic documents viewable to the public. The division is led by the State Archivist, a position ...
Ammonium iodide is the inorganic compound with the formula NH 4 I. A white solid. It is an ionic compound, although impure samples appear yellow. This salt consists of ammonium cation and an iodide anion. [1] It can be prepared by the action of hydroiodic acid on ammonia. It is easily soluble in water, from which it crystallizes in cubes.
The pyrophosphate bond is also sometimes referred to as a phosphoanhydride bond, a naming convention which emphasizes the loss of water that occurs when two phosphates form a new P−O−P bond, and which mirrors the nomenclature for anhydrides of carboxylic acids.
In 1956, the United States, Canada, and Mexico came to an agreement with the American Association of Motor Vehicle Administrators, the Automobile Manufacturers Association and the National Safety Council that standardized the size for license plates for vehicles (except those for motorcycles) at 6 inches (15 cm) in height by 12 inches (30 cm) in width, with standardized mounting holes. [1]
A nitrenium ion (also called: aminylium ion or imidonium ion (obsolete)) in organic chemistry is a reactive intermediate based on nitrogen with both an electron lone pair and a positive charge and with two substituents (R 2 N +).
The Planck relation [1] [2] [3] (referred to as Planck's energy–frequency relation, [4] the Planck–Einstein relation, [5] Planck equation, [6] and Planck formula, [7] though the latter might also refer to Planck's law [8] [9]) is a fundamental equation in quantum mechanics which states that the energy E of a photon, known as photon energy, is proportional to its frequency ν: =.
Mechanical vapor recompression (MVR) is an energy recovery process which can be used to recycle waste heat to improve efficiency. [ 1 ] [ 2 ] Typically, the compressed vapor is fed back to help heat the mother liquor in order to produce more vapor or steam.