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The polymeric compounds M(OH) 2 and M(OH) 3 are in general prepared by increasing the pH of an aqueous solution of the corresponding metal cation until the hydroxide precipitates out of solution. On the converse, the hydroxides dissolve in acidic solution. Zinc hydroxide Zn(OH) 2 is amphoteric, forming the tetrahydroxidozincate ion Zn(OH) 2−
OH Ocular history OMB Oculo motor balance ONH Optic nerve head Oph Ophthalmoscopy OS oculus sinister (left eye) OU oculus uterque (both eyes) PD Pupillary distance PERRLA Pupils equal, round, reactive to light and accommodation PH Pinhole see Pinhole occluder and Visual_acuity#Legal_definitions: PHNI Pinhole No Improvement
OH, designation in the Unified Soil Classification System for organic-rich clay or silt of high plasticity O h , the point group of octahedral molecular geometry Ohnesorge number , a dimensionless number that relates the viscous forces to inertial and surface tension forces
In chemistry, a hydroxy or hydroxyl group is a functional group with the chemical formula −OH and composed of one oxygen atom covalently bonded to one hydrogen atom. In organic chemistry , alcohols and carboxylic acids contain one or more hydroxy groups.
The musicologist Cecil Sharp, influential in the folklore revival in England, noted in his 1916 One Hundred English Folksongs that the words are "so corrupt, indeed, that in some cases we can do little more than guess at their original meaning". [1]
The expression is also related to oh ve, an older expression in Danish and Swedish, and oy wah, an expression used with a similar meaning in the Montbéliard region in France. [citation needed] The Latin equivalent is heu, vae!; a more standard expression would be o, me miserum, or heu, me miserum. [citation needed]
Oh or O is a family name in Korea. It is written using the hanja characters, 吳, 五, 伍, 吾, and 晤. According to the 2015 census in South Korea, there were ...
Similarly, in a basic solution, the concentration of hydroxide ions (OH-) can be considered equal to the concentration of the base. The pH of a solution is defined as the negative logarithm of the concentration of H +, and the pOH is defined as the negative logarithm of the concentration of OH −.