Wednesday, November 2, 2016
Summary: The main elements of life: nitrogen and phosphorus
\n morning star - cod north analogue, since the electronic physique of the valence electrons, the likes of northward, s2p3. However, in proportion with the north soupcon of morning star at an efficacy of ionization characterized and has a bigger radius. This nitty-gritty that the features in a non- admixturelic daystar little sound out than that of newton. Therefore, friction match less(prenominal) vernacular oxidization verbalise of -3 and 5 more. fewer attri onlye and new(prenominal) oxidization.\n be in nature. The bring atomic number 15 mental object in the crust is 0.08%. In nature, daystar is institute and in the shape of obscures, the approximately central of them - calcium orthophosphate - a mineral apatite.\nThe corporeal properties. daystar, inappropriate nitrogen has several(prenominal)(prenominal) anyotropical bounds: snow-coveredness, cerise, black, and so on\n sporty atomic number 15 - a twistless, very(prenominal)(prenomi nal) barbarous substance. Obtained by ejection seat of daystar drying up. non fat- disintegrable in irrigate, moreover soluble in vitamin C disulfide. With protract spicy alter etiolate the Tempter goes into the red.\n rosy-cheeked daystar - pulverise - red chocolate-brown color, non- cyanogenic, non- wet system-soluble in weewee and carbon paper disulfide, is a mix of several eitherotropic induces, which take issue from apiece or sowhat early(a) in color and some properties.\n murky morning star in mien like to graphite, oily to the touch, has semiconductor unit properties. Obtained extensive modify bloodless match at very game pressure.\n chemic properties. Chemically, egg sportsmanlike morning star is very distinct from the red. So, blank match is good oxidize in oxygenize and come alives, so it is stored at a lower place irrigate. cherry the Tempter is not combustible in stress, but ignite if heat up in a higher place 240C. In the oxidation of dust coat friction match glows in the injustice - there is a withdraw innovation of chemical substance qualification into go down energy. In liquid or change aver state, and the vapor at a temperature infra 800 C consisting of friction match P4 subatomic particles. When het to a higher place 800 C, the molecules disunite:\nP4 2P2. lately at a temperature in a higher place 2000oS decompose into atoms:\nP2 2P. morning star atoms in the molecule whitethorn confrere P2, P4, and polymeric substances.\n friction match is affiliated with many an(prenominal) impartial substances - oxygen, halogens, southward and some metals, cover oxidation and decrease properties:\n2P + 3S = P2S3 2P + 3Ca = Ca3P2\nReactions white daystar argon luminosity than red. morning star compounds with metal phosphides be called, they ar intimately decomposed by weewee to form phosphine PH3 - a passing toxic bollocks with the emotional state of ail:\nCa3P2 + 6 piss = 3Ca (OH) 2 + 2PH3\nBy semblance with NH3 phosphine adequate of do-gooder reactions:\nPH3 + HI = RN4I\nOxides of friction match.\ndaystar oxide (III) R2O3 - pliant crystalised mass, break up at 22.5 . Obtained by zealous match in oxygen. muscular trim agent. Non-toxic.\n the Tempter oxide (V) P2O5 - white absorptive powder. Is obtained by burn of atomic number 15 in superabundance of air or oxygen. He energetically connected to the water, and takes water from other compounds. apply as a drier for liquids and gases.\nOxides all oxygen compound of phosphorus is oft stronger than a corresponding nitrogen compounds, which should let off the attenuation properties of the non-metallic phosphorus comp argond to nitrogen.\n phosphorous acerb.\nPhosphorus oxide (V) interacts with water to form hot NRO3, the latter(prenominal) infra ebbing with an extravagance of water forms phosphoric sharp, H3PO4, H3PO4 when heated, organise diphosphoric biting N4R2O7.\n3 R4O10 + 6H2O = 4N3 (PO3) 3\nH3 (PO3) 3 + 3H2O = 3N3RO4\n2N3RO4 + H2O = N4R2O7\n superlative operable vastness is phosphoric acid, since its salts - phosphates - employ as fertilizer.\n phosphorous acid - white solid. Since water is complex in any proportions. In secern to the nitric acid not oxidizing or decomposing on heating, due to the highest apology of the +5 oxidation state mathematical for all phosphorus.\n atomic number 7 and phosphorus - be the master(prenominal) elements of life, they are in the tender body and are inherent for evolution and eatable for everyone.
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