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alkalinity range

См. также в других словарях:

  • Pinirampus pirinampu — Taxobox name = Pinirampus pirinampu regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Siluriformes familia = Pimelodidae genus = Pinirampus species = P. pirinampu binomial = Pinirampus pirinampu binomial authority = (Spix… …   Wikipedia

  • Oxydoras — niger in an aquarium Scientific classification Kingdom: Animalia …   Wikipedia

  • plant disease — ▪ plant pathology Introduction       an impairment of the normal state of a plant that interrupts or modifies its vital functions.       All species of plants, wild and cultivated alike, are subject to disease. Although each species is… …   Universalium

  • biosphere — biospheric /buy euh sfer ik/, adj. /buy euh sfear /, n. 1. the part of the earth s crust, waters, and atmosphere that supports life. 2. the ecosystem comprising the entire earth and the living organisms that inhabit it. [1895 1900; < G Biosphäre; …   Universalium

  • pH — Symbol for the negative decadic logarithm of the H+ ion concentration (measured in moles per liter); a solution with pH 7.00 (1 × 10−7 g molecular weight of hydrogen per liter) is neutral at 22°C ( i.e., [H+] = [OH− …   Medical dictionary

  • gardening — /gahrd ning/, n. 1. the act of cultivating or tending a garden. 2. the work or art of a gardener. [1570 80; GARDEN + ING1] * * * Laying out and tending of a garden. Though palatial gardens existed in ancient times, small home gardens became… …   Universalium

  • PH — is the measure of the acidity or alkalinity of a solution. It is formally a measure of the activity of dissolved hydrogen ions (H+), but for very dilute solutions, the molarity (molar concentration) of H+ may be used as a substitute with little… …   Wikipedia

  • Marine aquarium — See also: Reef aquarium A marine aquarium …   Wikipedia

  • lake — lake1 /layk/, n. 1. a body of fresh or salt water of considerable size, surrounded by land. 2. any similar body or pool of other liquid, as oil. 3. (go) jump in the lake, (used as an exclamation of dismissal or impatience.) [bef. 1000; ME lak(e) …   Universalium

  • Lake — /layk/, n. Simon, 1866 1945, U.S. engineer and naval architect. * * * I Relatively large body of slow moving or standing water that occupies an inland basin. Lakes are most abundant in high northern latitudes and in mountain regions, particularly …   Universalium

  • acid–base reaction — ▪ chemistry Introduction       a type of chemical process typified by the exchange of one or more hydrogen ions, H+, between species that may be neutral (molecules, such as water, H2O; or acetic acid, CH3CO2H) or electrically charged (ions, such… …   Universalium

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