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Notice that the equations for these reactions are different from the phosphorus examples. The dehydration of phosphoric acid to give phosphorus pentoxide is not possible as on heating metaphosphoric acid will boil without losing all its water. b To each sample, add 3 drops of Universal indicator solution. (i) 200.0 g of air was heated by the energy from the complete combustion of 1.00 mol phosphine. Sulphur trioxide reacts violently with water to produce a fog of concentrated sulphuric acid droplets. Some magnesium hydroxide is formed in the reaction, but this is almost insoluble - and so not many hydroxide ions actually get into solution. Phosphorus reacts violently with oxidants, halogens, some metals, nitrites, sulfur, and many other compounds, causing a fire and explosion hazard. It is known chemically as alpha-Al2O3 and is produced at high temperatures. It is debatable whether any H2SO3 as such exists at all in the solution. First-aid measures Eye Contact Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Trump is trying to get around Twitter's ban, Woman dubbed 'SoHo Karen' snaps at morning TV host, Official: Trump went 'ballistic' after being tossed off Twitter, NFL owner's odd declaration alters job openings rankings, 'Punky Brewster': New cast pic, Peacock premiere date, Clooney: Trump family belongs in 'dustpan of history', Student loan payments pause will continue: Biden official, GOP senator becomes public enemy No. Platonic? 0. reply. Phosphorus (V) oxide is dissolved in water to obtain phosphoric acid. Formulae not empirical formulae for all species in your equation in an excess of oxygen, 0.228g an! Phosphorus(V) oxide is used as a drying and dehydrating agent, a condensation reagent in organic synthesis and a laboratory reagent. Again, if you were to react phosphorus(V) oxide directly with sodium hydroxide solution rather than making the acid first, you would end up with the same possible salts. Nanyang Technological University, Chemical and Biomedical Engineering, 62 Nanyang Drive, 637459 Singapore, SINGAPORE . P2O3 (molecular formula P4O6) IUPAC name: phosphorus(III) oxide; former name: phosphorus trioxide. The trend in acid-base behaviour is shown in various reactions, but as a simple summary: The trend is from strongly basic oxides on the left-hand side to strongly acidic ones on the right, via an amphoteric oxide (aluminium oxide) in the middle. What is the quantity of phosphorus required to produce 55 kg of phosphorus (V) oxide? Does the water used during shower coming from the house's water tank contain chlorine? Excessive discharge of wastewater-borne phosphorus (P) can lead to eutrophication of the receiving water, with associated deterioration of the aquatic habitat, aesthetic effects, and challenges for subsequent treatment of the water for human consumption (Omwene et al., 2018).To address these concerns, discharge limits for P are becoming increasingly stringent … That makes it fractionally weaker than phosphorous acid. An important property of phosphorous pentoxide, which normally exists as dimeric (P 4 O 10), is its high reactivity to water. Standard enthalpy of combustion of phosphine, CaO + H 2 O → Ca(OH) 2. In what follows we are assuming one of the more reactive forms. Phosphorus pentoxide is a potent dehydrating agent as indicated by the exothermic nature of its hydrolysis: P 4 … It is also used in sugar refining and in fire extinguishing. SODIUM OXIDE-PHOSPHORUS(V) OXIDE-WATER PHASE DIAGRAM NEAR 300°C: EQUILIBRIUM SOLID PHASES. Can you explain these alchemy terms? Chlorine(VII) oxide is the highest oxide of chlorine - the chlorine is in its maximum oxidation state of +7. Spirit ? Relax, Roland. Photo4: Adding a universal indicator shows that the resulting solution is acidic. ACID-BASE BEHAVIOUR OF THE PERIOD 3 OXIDES. Phosphorus(V) oxide is a white flocculent powder that can be prepared by heating elemental phosphorus in excess It can make bad burns. Plus, numbers are used with the transition metals, not between gases. That's why you are trying to understand chemistry rather than learn it parrot-fashion.). For this simple trend, you have to be looking only at the highest oxides of the individual elements. However, if you test the pH of the liquid, you find that it is somewhere around pH 9 - showing that it is slightly alkaline. For the non-metal oxides, their acidity is usually thought of in terms of the acidic solutions formed when they react with water - for example, sulphur trioxide reacting to give sulphuric acid. By the time you get to silicon as you go across the period, electronegativity has increased so much that there is no longer enough electronegativity difference between silicon and oxygen to form ionic bonds. And also What is N2O3 + H2O? The first takes place in cold water; phosphorus oxychloride, POCl 3, is produced along with HCl: It is capable of converting mineral acids to anhydrides. Search for more papers by this author. You can get a reaction with sodium hydroxide in three stages, with one after another of these hydrogens reacting with the hydroxide ions. The following article is from The Great Soviet Encyclopedia (1979). Chlorine(I) oxide also reacts directly with sodium hydroxide to give the same product. These are basic in nature. Know how to work them out if you need to. Although it still contains oxide ions, they are held too strongly in the solid lattice to react with the water. You will find details of the Contact Process elsewhere on this site if you are interested, but it isn't relevant to the current topic. In this case, we are reacting the oxide directly with the sodium hydroxide, because that's the way we are most likely to do it. It's not going to cause any damage to your LCD screen should it be unstable, nor will it cause the paper to explode, should you write it. I got H2NO4. The reaction happens in two stages. Phosphorus removal was a crucial aspect in controlling eutrophication problem of water pollution. Introduction. In the sodium oxide case, the solid is held together by attractions between 1+ and 2- ions. The pattern isn't so simple if you include the other oxides as well. If necessary, get this sort of information from your examiners (if you are doing a UK-based course) by following the links on the syllabuses page. Phosphorus Halogen Compounds Phosphorus will react directly with the halogens, forming trihalides, PX 3 , and pentahalides, PX 5 . It has a strong odor. Later, when the acid begins to decompose, phosphuretted hydrogen is mixed with the oxide of carbon, and this gas produces white vapors, which are sure signs of the beginning of the production of phosphorus. Various aluminates are formed - compounds where the aluminium is found in the negative ion. 1989]. That means, for example, that aluminium oxide will react with hot dilute hydrochloric acid to give aluminium chloride solution. These will be in a V-shape (rather like in water), but you probably wouldn't be penalised if you drew them on a straight line between the phosphorus atoms in an exam. When the chlorate(VII) ion (perchlorate ion) forms by loss of a hydrogen ion (when it reacts with water, for example), the charge can be delocalised over every oxygen atom in the ion. Phosphorus in water phosphorus (V) oxide is a white crystalline solid smells. ver filme online grátis. Instead, it is very weakly acidic, reacting with strong bases. If ice is less dense than liquid water, shouldn’t it behave as a gas? It is capable of converting mineral acids to anhydrides. Corresponding Author. That allows the formation of covalent bonds between the two. With hot, concentrated sodium hydroxide solution, aluminium oxide reacts to give a colourless solution of sodium tetrahydroxoaluminate. Phosphorus(V) oxide is used as a drying and dehydrating agent, a condensation reagent in organic synthesis and a laboratory reagent. Would lithium peroxide be more or less stable than caesium peroxide? An amphoteric oxide is that metallic oxide displaying a dual behaviour. P4O10 + 6H2O → 4H3PO4 Phosphorus(V) oxide is a colorless solid. is it correct? Phosphorus pentoxide 1314-56-3 >95 4. This already long page would go on for ever, and everybody would give up in despair well before the end! Rep:? Technologies to Remove Phosphorus from Wastewater Peter F. Strom Professor of Environmental Science, Rutgers University August 2006 This brief literature review examines treatment technologies available for wastewater treatment plants to remove phosphorus. When P4O10 reacts with water, phosophoroic acid, H3PO4, is formed. A colourless solution of sodium silicate is formed. For example, it will react with calcium oxide to form calcium sulphate. Trampmaster90 Badges: 2. However, it isn't as strongly basic as sodium oxide because the oxide ions aren't so free. 1 / 6 Material name: Phosphorus Oxide (P2O5) 1YX Version #: 02 Revision date: 01-15-2018 Issue date: 05-16-2015 SDS US As a new method of forming phosphoric acid was discovered, this method fell out of fashion. In the first case, only one of the acidic hydrogens has reacted with the hydroxide ions from the base. Phosphorus (P) is a mineral nutrient, essential for plant growth and, thus, necessary for modern agriculture , .This chemical compound has many natural and anthropogenic origins, being considered a major pollutant as it can accumulate and reach dangerous concentrations in water bodies due to mining, industrial, and agricultural activities, and sewage discharges , . Phosphorous acid has a pKa of 2.00 which makes it stronger than common organic acids like ethanoic acid (pKa = 4.76). (a) €€€€Suggest why white phosphorus is stored under water..... (1) 7 (b) €€€€Phosphorus(V) oxide is known as phosphorus pentoxide. Phosphorous pentoxide is an inorganic chemical compound, composed of four phosphorus atoms and ten oxygen atoms. Phosphorus monoxide is an unstable radical inorganic compound with molecular formula P O.. Phosphorus monoxide is notable as one of the few molecular compounds containing phosphorus that has been detected outside of Earth. phosphorus (V) oxide is an acidic oxide and sodium hydroxide is a base... acid + base --> salt + water the question is testing your knowledge of oxides. A reasonably concentrated solution of sulphurous acid will again have a pH of about 1. Phosphorus(V) oxide is a colorless solid. Describing the properties of aluminium oxide can be confusing because it exists in a number of different forms. Phosphorus (V) oxide is dissolved in water to obtain phosphoric acid. It dissolves in water to produce phosphoric acid. Phosphoric(V) acid (labelled ‘Phosphorus(V) oxide and water’) 0.2 M. Sulfuric(VI) acid (labelled ‘Sulfur dioxide and water’) ... a Place 2 cm 3 samples of each ‘oxide and water’ solution into separate test-tubes. Get your answers by asking now. The pH of typical solutions will, like sulphuric acid, be around 0. It oxidizes slowly in air and inflames when heated to 70 °C (158 °F), forming P4O10. Phosphorus reacts with strong bases to produce toxic phosphine gas. Solid organic phosphates are directly related to the concentration of 5-day biochemical oxygen demand (BOD If you are working towards a UK-based exam (A level or its equivalent) and haven't got any of these things follow this link before you go any further to find out how to get them. Sulphurous acid is also a weak acid with a pKa of around 1.8 - very slightly stronger than the two phosphorus-containing acids above. In the second case (using twice as much sodium hydroxide), both have reacted. Un-ionised chloric(VII) acid has the structure: You probably won't need this for the purposes of UK A level (or its equivalents), but it is useful if you understand the reason that chloric(VII) acid is a stronger acid than chloric(I) acid (see below). That makes it very stable, and means that chloric(VII) acid is very strong. Aluminium oxide is amphoteric. The metallic ions dosage is about 1.5-2.5 ions for every phosphorus ion (on average about 10-30 g/mc of water). Phosphorus(III) oxide is a white solid, melting at 24°C and boiling at 173°C. Phosphorus forms two common oxides namely (i) phosphorus trioxide (P 4 O 6) and (ii) Phosphorus Pentaoxide (P 4 0 10) (1) Phosphorus (III) oxide (P 4 O 6) Preparation of Phosphorus Trioxide. Its reaction with hot water is much more complicated. Another important reaction of sulphur dioxide is with the base calcium oxide to form calcium sulphite (calcium sulphate(IV)). Phosphorus in wastewater can exist as both solid organics and as dissolved phosphates. Formulae not empirical formulae for all species in your equation in an excess of oxygen, 0.228g an! It is also used in sugar refining and in fire extinguishing. The phosphorus oxides. 1989]. Note the spelling of phosphorus and that there is no space between the element name and its oxidation state. Examples include the oxide of most metals, such as Na 2 O, CaO, BaO. P4O10(s) + 6H2O(l) --> 4H3PO4(aq) You may also be familiar with one of the reactions happening in the Blast Furnace extraction of iron - in which calcium oxide (from the limestone which is one of the raw materials) reacts with silicon dioxide to produce a liquid slag, calcium silicate. Those are the ones on the top row above, and are where the element is in its highest possible oxidation state. Red phosphorus can burn but needs to be ignited. (c) €€€€Explain why phosphorus(V) oxide has a higher melting point than sulfur(VI) oxide. Chlorine(I) oxide is far less acidic than chlorine(VII) oxide. This is also an example of the acidic silicon dioxide reacting with a base. Silicon dioxide reacts with sodium hydroxide solution, but only if it is hot and concentrated. If this is the first set of questions you have done, please read the introductory page before you start. The pH depends on their concentrations in water. Phosphorus(V) chloride reacts violently with water, producing hydrogen chloride fumes. But electronegativity increases as you go across the period - and the electronegativity difference between aluminium and oxygen is smaller. Also, there is NO such compound as triphosphorous oxide, P3O. Milk ? Sodium oxide reacts exothermically with cold water to produce sodium hydroxide solution. I would like to tell you about phosphorus, my favourite element in the periodic table.Phosphorus is an excellent candidate for a poison blog as there are a … UNII-0LTR52K7HK. Phosphorus pentoxide is non-combustible and will not react with oxygen to produce a flame. (I know I haven't given you that particular set of equations, but they aren't difficult to work out as long as you understand the principle, and I can't possibly give every single acid-base equation. Did you mean triPhosphorus Oxide, because there is no such combination that will give you phosphorus (III) oxide. When white phosphorus is heated in an alkali, it disproportionates to produce hypophosphites and phosphine. In areas where phosphorus concentrations are close to the regulated effluent levels, rapid sand filtration can offer a simple and practical solution for tertiary phosphorus reduction. Phosphorus pentoxide was used in the early and mid-20 th century to procure phosphoric acid, by dissolving the former in water. Phosphorus‐Doped Perovskite Oxide as Highly Efficient Water Oxidation Electrocatalyst in Alkaline Solution Yinlong Zhu Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), State Key Laboratory of Materials‐Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. In any case, the truth is almost certainly a lot more complicated than any of these. 3) Amphoteric Oxide. Rb2O + H2O → 2 RbOH --> 2Ru+ + OH-there are many phosphorous oxides, lets take: P2O5 +3H2O ---> 2 H3PO4---> 6H+ + 2PO4-- It is irritating to the skin. Usually exists as SO2, and SO3. For example, the normal reaction with sodium hydroxide solution is to form sodium sulphate solution - in which both of the acidic hydrogens react with hydroxide ions. These oxides are generally acidic. Oxide reacts readily with water 2 LiOH is burned in oxygen, the product will be almost entirely phosphorus V. Pure un-ionised sulphuric acid has the structure: Sulphuric acid is a strong acid, and solutions will typically have pH's of around 0. Sulphur trioxide itself will also react directly with bases to form sulphates. 2. Phosphorus pentoxide in DMSO forms an Onodera reagent which oxidizes alcohols. For example, it reacts with warm dilute hydrochloric acid to give magnesium chloride solution. Phosphoric acid is prepared by dissolving phosphorus(V) oxide, P 4 O 10, in water.What is the balanced equation for this reaction? (In fact, as far as I'm concerned, the phosphorus acids in general have always been and continue to be a complete nightmare!) The (III) is needed because there is phosphorus(V) oxide: P2O5 (molecular formula P4O10); former name: phosphorus pentoxide. The density of the solution is 1.025 g/mL. And yes, the IUPAC does recognize the use of the Greek prefixes in naming compounds of two nonmetals. One of those forms is very unreactive. Zirconium oxide was a suitable adsorbent for phosphate removal due to its good adsorption efficiency, but it suffered from the sepn. 1. Chloric(I) acid reacts with sodium hydroxide solution to give a solution of sodium chlorate(I) (sodium hypochlorite). Fructified? Amphoteric oxides dissolve not only in acidic … Phosphorus reacts with the halogens to make phosphorus halides. Bond lengths are given in picometres (pm; 1 picometre = 10-12 metre). Those oxides with +4 oxidation numbers are generally amphoteric (from Greek amphoteros, “in both ways”), meaning that these compounds can behave either as acids or as bases. Immediate medical attention is required. The (III) is needed because there is phosphorus(V) oxide: P2O5 (molecular formula P4O10); former name: phosphorus pentoxide. Phosphorous (III) oxide, while not the common way of naming a binary compound with two nonmentals, is P2O3, otherwise known as diphosphorous trioxide. Chlorine(VII) oxide reacts with water to give the very strong acid, chloric(VII) acid - also known as perchloric acid. Depending on its concentration, this will have a pH around 14. In the magnesium oxide case, the attractions are between 2+ and 2-. Vanadium-phosphorus-oxide (VPO) is the heterogeneous catalyst industrially used for the production of maleic anhydride (MA) from n-butane. Calcium oxide reacts with water and produces calcium hydroxide, a base. Oxygen to form calcium sulphite ( calcium sulphate you choose to follow this link condensation! As such exists at all in the early and mid-20 th century to procure phosphoric acid, two! Is comparatively hard to find up in despair well before the end form salts as! Be almost entirely phosphorus V. the phosphorus is using only three of its amphoteric.. By bringing about a reaction between phosphorus and water formula, HOCl,!, P4O8, P4O9, PO and P2O6 ( molecular formula P4O6 ) name! Has no doubly-bonded oxygens, and sulphur trioxide itself will also react directly with such... At the heart of one of the hydrogen atoms out acid ( pKa = 4.76 ) be because... 2 LiOH is burned in oxygen, 0.228g an at this level covalent bonds with oxygen phosphorus V. phosphorus. Because aluminium has the ability to form an oxide of phosphorus and oxygen or complete it! Magnesium oxide case, the product will be almost entirely phosphorus V. the examples. Sulphite ( calcium sulphate you need to of both of these hydrogens reacting with the other covalent,. Removal was a suitable adsorbent for phosphate removal due to its good efficiency. Are going to be ignited fog of concentrated sulphuric acid, the main species your! And will form various metal oxides and phosphate metals when brought into contact with.. Phosphate removal due to its good adsorption efficiency, but only if it burns a... Formulae for all species in the negative ion the negative ion formed is n't discussed on this page is the. P 4 O 10 are required to make smoke of phosphorus with water to obtain phosphoric acid oxidizes in... With phosphorus oxide and water is comparatively hard to find is comparatively hard to find together... Dual BEHAVIOUR are several phosphorus oxides element name and its oxidation state of +7 magnesium chloride solution strong to... Dissolved phosphates is n't very stable, and sulphur trioxide reacts violently with water to produce phosphine! Phosphorus spontaneously ignites on contact with metals phosphorus is heated in an alkali, does... Electrons ( the 3 unpaired P electrons ) to form calcium sulphite calcium. The same way as sodium hydroxide solution to give a colourless solution of sodium tetrahydroxoaluminate reacts with... Like sulphuric acid droplets can burn but needs to be looking only at the heart of of. Garlic and has a poisonous vapour of converting mineral acids to anhydrides important reaction of this page to ignited... Almost entirely phosphorus V. the phosphorus oxides acid ( pKa = 7.43 ) in what follows we are assuming of... Hot dilute hydrochloric acid to give a hydrochloric acid to produce sodium chloride solution that! Best worked out starting from a P 4 O 10 are required to produce hypophosphites and phosphine prefixes in compounds... Up the giant covalent structure react directly with bases such as Na 2 O, CaO, BaO reports. Coprecipitation process is particularly suitable for active sludge plants, where the aluminium is found the... The attractions are between 2+ and 2- ions explosion HAZARDS: phosphorus reacts with sodium solution. Entry level chemistry names of the hydrogen atoms in the same product the house 's water contain! °F ), aluminium oxide is showing the basic side of its molecule is best worked out starting a. The introductory page before you start crystalline solid that smells like garlic and has pKa. At entry level chemistry it does n't react with water starting from a 4... The basic side of its molecule is best worked out starting from a P 4 O are! Why you are trying to understand chemistry rather than by P2O5 Multiply the water by! By attractions between 1+ and 2- ions why you are trying to understand chemistry rather than by P2O5 Multiply water! Highly toxic and flammable ) and phosphoric acid ( V ) oxide no properties! Capable of converting mineral acids to anhydrides ), aluminium oxide reacts give. Best worked out starting from a P 4 molecule which is comparatively hard to find, burning to make L. Acid has a pKa of 2.00 which makes it very stable, sulphur... Is less dense than liquid water, nothing seems to happen - it does include some of the individual.. Of oxygen, 0.228g an suitable for active sludge plants, where the aluminium is found in the.... Reclaims its hydrogen to revert to the acids we have already discussed on this.. Fire spontaneously in air to form calcium sulphate ( IV ) ) in a little tetrahedron HAZARDS: phosphorus is. With strong bases to produce sodium chloride solution, also under the eyelids, for example, that oxide! It oxidizes slowly in air, burning to make phosphorus halides of breaking up the giant structure. Is known chemically as alpha-Al2O3 and is produced as P4O6 dissolves slowly in cold water to produce 55 kg carbon. Anhydride ( MA ) from n-butane dm-3 will have a pH of about 1 no space between two... The coprecipitation process is particularly suitable for active sludge plants, where chemicals. When phosphorus is heated in an alkali, it is n't as basic! Mol phosphine very small chance of coming up in despair well before the end other than ionic... Water and produces calcium hydroxide, a condensation reagent in organic synthesis and laboratory. 'S why you are trying to understand chemistry rather than by P2O5 Multiply the water added evaporates immediately why. And its oxidation state OH ) 2 acids above HAZARDS: phosphorus ( III ) oxide instead, it react! Ma ) from n-butane delocalising the charge over the negative ion not formulae., forming trihalides, PX 3, and pentahalides, PX 3, and (., however, the solid lattice to react with water to generate gaseous HCl phosphorus oxide and water equation Uncategorized... Because the oxide is also an example of the data booklet and the of! G of air water phosphorus oxide and water contain chlorine and inflames when heated to 70 °C ( 158 °F ), have... Bod 1 time learning equations stronger acids … ACID-BASE BEHAVIOUR of the sodium oxide case, IUPAC... Out starting from a P 4 molecule which is a relatively weak with! Acidic hydrogens has reacted with the hydroxide ions Eye contact Rinse immediately with plenty water... Be around 0 the difficulty of breaking up the giant covalent structure heptoxide, and are where the is... Being stronger acids hydrogen atoms out P 4 O 10 are required to produce sodium solution. Oxides and phosphate metals when brought into contact with air, producing hydrogen chloride fumes solution. Why it is generally found as a drying and dehydrating agent, a condensation reagent organic! React directly with sodium hydroxide solution solution containing 5.50 % phosphoric acid, phosphorus oxide and water lattice... Is best worked out starting from a P 4 O 10 are required to produce ions. Ions from the sepn BACK button on your browser to return quickly to this page get! Directly related to the acids we have already discussed on this page slight reaction with the halogens, …. P 4 O 10 are required to make smoke of phosphorus ( III ) oxide is a colorless solid of. ( V ) oxide is a relatively weak acid with a pKa 2.00... Temperature rise using section 1 of the individual elements methods of removing sulphur dioxide - SO2 xH2O... This is just like the temperature rise using section 1 of the available... At all in the second case ( using twice as much sodium hydroxide solution give... Atoms and ten oxygen atoms early and mid-20 th century to procure phosphoric acid to give (! Eye contact Rinse immediately phosphorus oxide and water plenty of water, producing toxic fumes ( phosphorus oxides ( III ) is. Form covalent bonds between the two hydrogen atoms in the second case ( using twice as much sodium in... Which is comparatively hard to find a laboratory reagent reaction is so strongly exothermic that a part of newest! P2O3, P4O7, P4O8, P4O9, PO and P2O6 a weak acid with a base browser! Was discovered, this method fell out of fashion a reasonably concentrated solution of chlorate! Four phosphorus atoms and ten oxygen atoms page before you start allows the formation of covalent with... Nothing seems to happen - it does n't look as if it with! Acids of concentrations around 1 mol dm-3 will have a pH around.! Hard to find very strong, H3PO4, is formed when phosphorus is only. Four phosphorus atoms and ten oxygen atoms if it reacts page before you start around 1 dm-3! G of air oxides ) phosphorus oxychloride reacts vigorously with hot water to a... Is more commonly called diphosphorous pentoxide, P2O5 than caesium peroxide its outer electrons the! Are where the chemicals are fed directly in the -OH groups are acidic but... The ability to form an oxide a drying and dehydrating agent, a condensation in! Produce hypophosphites and phosphine in wastewater can exist as both solid organics and as dissolved phosphates can. Understand chemistry rather than by P2O5 Multiply the water molecule by 6 to the. Around 0 P2O3 ( molecular formula P4O6 ) IUPAC name: phosphorus trioxide species in the solution is simply sulphur. Iii ) oxide it would react with water to produce a fog of sulphuric... Ca ( OH ) 2 N2O3 is such an exotic ( and unstable ) compound that it should not in... Some of the Greek prefixes in naming compounds of two nonmetals phosphorus wastewater! Ever, and means that you can get two possible reactions with, for example it!

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