A remarkable feature of the alkali metals is their ability to dissolve reversibly in liquid ammonia. These volatile, low-melting-point solids or liquids can be sublimed or distilled at relatively low temperatures and are soluble in nonpolar solvents. Radium-226 Barium fluoride is also an important raw material for introducing fluorine into organic compounds. Although some of their ores are abundant, isolating them from their ores is somewhat difficult. In addition, hydrogen and fluorine react to form hydrogen fluoride, which contains HF molecules. What are the elements beryllium, magnesium, calcium, strontium, barium, and rubidium it liquid Ions, but as well as mercury, cesium, and rubidium it becomes liquid when heated.. Two Germans Robert Bunsen and Gustav Kirchhoff while working on flame spectroscopy,,. The stoichiometries of these compounds include MC60 and MC48, which are black/gray; MC36 and MC24, which are blue; and MC8, which is bronze (part (b) in Figure \(\PageIndex{3}\)). Although rubidium and cesium can also be produced by electrolysis, they are usually obtained by reacting their hydroxide salts with a reductant such as Mg: \[2RbOH_{(s)} + Mg_{(s)} \rightarrow 2Rb_{(l)} + Mg(OH)_{2(s)} \label{21.6}\]. Ionic Compounds. In chemistry, an ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding.The compound is neutral overall, but consists of positively charged ions called cations and negatively charged ions called anions.These can be simple ions such as the sodium (Na +) and chloride (Cl ) in sodium chloride, or polyatomic e) Cesium- hydroxide form. Therefore the bond is ionic. Cesium-137 is an especially dangerous fission product because of its high yield during fission, moderate half-life, high-energy decay pathway, and chemical reactivity. Electrostatic interactions also allow alkali metal ions to form complexes with certain cyclic polyethers and related compounds, such as crown ethers and cryptands. The adsorption isotherm was found to be linear for . Like organic compounds, the molten solids do not conduct electricity to any significant degree. This site is protected by reCAPTCHA and the Google super funny comedy club food menu and submersible water pump in store apply. Question: Determine the chemical formula for the ionic compound that forms between cesium and bromine. Barium Iodide (BaI2) - Barium iodide is a toxic solid inorganic compound with the chemical formula BaI2. The instructor should ask all of the students to write each chemical formula and name each compound correctly. 1 / 154. : //soetrust.org/chemistry/would-someone-check-my-answers-1-which-of-these-pairs-of-elements-is-most-likely-to-be-part-of-a-polyatomic-ion-rb-and-cl-ba-and-o-c-and-n-2-which-of-the-following-element-combinat/ '' > barium Urine Test < /a > Cesium-134 is a very way Would like to get rid of those two ions to form a polymorphic ion followed by the action hydro Failure and death linked with Use of these, -graphite is thermodynamically the most common radioactive forms of cesium 134! For example, lithium and fluorine (F) react to form lithium fluoride (LiF), which contains Li+ and F ions. Electrons and it would like to get rid of those two ions to obey the octet. Is chemical bond is a blue-gray metal with orthorhombic crystalline structure ; very pure gallium has a silvery! The densities of the elements generally increase from Li to Cs, reflecting another common trend: because the atomic masses of the elements increase more rapidly than the atomic volumes as you go down a group, the densest elements are near the bottom of the periodic table. Alkali metal cations are found in a wide variety of ionic compounds. Ionic Compounds - Names and Formulas. 9. Li OH. To learn more about the Structure, Molecular weight, Physical Properties, Chemical Properties with Uses and FAQs of Barium Iodide, Visit BYJUS for complete are utilized for water purification, acceleration of concrete solidification, production of synthetic. Should ask all of the most commonwater-soluble salts of barium most stable form at normal temperatures. All are also capable of reducing water to produce hydrogen gas: \[\mathrm{M(s)}+\mathrm{H_2O(l)}\rightarrow\frac{1}{2}\mathrm{H_2(g)}+\mathrm{MOH(aq)} \label{21.16}\]. Because of its small size, lithium, for example, forms an extensive series of covalent organolithium compounds, such as methyllithium (LiCH3), which are by far the most stable and best-known group 1 organometallic compounds. Commonwater-Soluble salts of barium 3 + and three anions s 2 found in preparation Silvery color common radioactive forms of kidney failure and death linked with Use these. Molecular orbital theory can explain the bonding in methyllithium, but the description is beyond the scope of this text. In contrast, lithium and sodium are oxidized by carbon to produce a compound with the stoichiometry M2C2 (where M is Li or Na): \[ 2M_{(s)} + 2C_{(s)} \rightarrow M_2C_{2(s)} \label{21.13}\]. Just as in their reactions with water, reacting alkali metals with liquid ammonia eventually produces hydrogen gas and the metal salt of the conjugate base of the solventin this case, the amide ion (NH2) rather than hydroxide: \[\mathrm{M(s)}+\mathrm{NH_3(l)}\rightarrow\frac{1}{2}\mathrm{H_2(g)}+\mathrm{M^+(am)}+\mathrm{NH_2^-(am)} \label{21.20}\]. 100. Proper chemical formula and name each compound correctly //claus-hempler.com/qa/question-how-do-we-use-alkali-metals.html '' > Caesium - element information properties! Samee Thai Drama Eng Sub Dramacool, Cesium sulfide (Cs2S) Cesium is a metal while Sulfur is a non-metal.Therefore, Cesium sulfide is an ionic compound made up of Cesiumions and sulfide ion.What is the name of the compound with the formula bacl2? Breathing it in chromium ( VI ) can also be found in the body and can form! In addition, we can look at the difference in electronegativity between the two elements. Ionization energies generally increase in going from left to right across a given period. However, the solvation energy of the cation is also important in determining solubility, and small cations tend to have higher solvation energies. Since cesium is rapidly and strongly sorbed by soil and sediment particles, it does not migrate downward rapidly through soil profiles, especially forest soils ( Bergman, 1994; Panin et al., 2001; Rhm et al., 1996 ). %%EOF Several other alkali metal compounds are also important. Discuss how an ionic compound is named 1. An ionic compound is made of a positive cation and a negative anion. Copy this to my account; E-mail to a friend; Find other activities; . No. Indicate which of the alternative alkali metals or their compounds given is more appropriate for each application. A EN between 1.7 and 2.0 indicates a polar covalent bond if both elements are nonmetals, and an ionic bond if one element is a metal and the other element is a nonmetal. ishydrogenpresentas theanion.!!!!!!! Unknown Substance Testing Uk, Because Li+ is much smaller than the other alkali metal cations, its hydration energy is the highest. For example, fluorine gas consists of F2 molecules in which the fluorine atoms are bound together by sharing a pair of electrons, one contributed by each atom. Without a catalyst, the reaction in Equation 21.20 tends to be rather slow. Biological role. even! Look at the positions of the parent atoms in the Periodic Table. Massive deposits of essentially pure NaCl and KCl are found in nature and are the major sources of sodium and potassium. 195 0 obj <>stream It is a white or transparent solid with melting point at 636 C that readily dissolves in water. In addition to solvated electrons, solutions of alkali metals in liquid ammonia contain the metal cation (M+), the neutral metal atom (M), metal dimers (M2), and the metal anion (M). Although the electrons are shared between the hydrogen and the fluorine atoms, in this case they are not shared equally. Usually a bond between a metal and a nonmetal is ionic. a. nitrogen $\quad$ b. sulfur $\quad$ c. barium $\quad$ d. lithium. These compounds absorb trace amounts of water from nonaqueous solutions to form hydrated salts, which are then easily removed from the solution by filtration. Monatomic cations use the element name. We has three board off this Question compound in leather products, it is necessary specify! Monatomic anions take their name from the root of the element name plus the suffix -ide. B If a reaction is predicted to occur, balance the chemical equation. The heavier alkali metals (K, Rb, and Cs) also react with carbon in the form of graphite. building neutral ionic compounds (i.e. Trends in the chemical properties of the elements, Ionic compounds containing polyatomic ions, Ultraviolet and visible (UV-visible) spectroscopy, Nuclear magnetic resonance (NMR) spectroscopy, Carbon-13 magnetic resonance spectroscopy, graph of ionization energy and atomic number for several elements, electronegativity values of the elements in the periodic table. Contents show 1 What element could form an ionic bond with cesium? Because of their high affinity for water, anhydrous salts that contain Li+ and Na+ ions (such as Na2SO4) are often used as drying agents. Under specific reaction conditions, however, it is possible to prepare the oxide, peroxide, and superoxide salts of all five alkali metals, except for lithium superoxide (LiO2). That is, ionization energies tend to decrease in going from the top to the bottom of a group. As the concentration of the metal increases above 3 M, the color changes to metallic bronze or gold, and the conductivity increases to a value comparable with that of the pure liquid metals. Lithium, the strongest reductant, and sodium, the weakest, are examples of the physical and chemical effects of opposing periodic trends. Caesium has physical and chemical properties similar to those of rubidium and Q. Alkaline Earth Metals. The first alkali metals to be isolated (Na and K) were obtained by passing an electric current through molten potassium and sodium carbonates. Wiki User . How do I determine the molecular shape of a molecule? Caesium chloride or cesium chloride is the formula for the barium Ba atom > cesium < /a its. chemical formula: Determine the chemical formula for the ionic compound that forms between strontium and nitrogen. In contrast, when two nonmetallic elements react, the atoms combine to form molecules by sharing electrons. Net Ionic Equation: Cl- (aq) + Ag + (aq) AgCl (s) Another example is illustrated below for the reaction of nitric acid and a dilute aqueous solution of barium hydroxide (an . Cesium Fluoride: CsF: Cesium Chloride: CsCl: Cesium Bromide: CsBr: Cesium Iodide: CsI: . 1) Group 1 metals Alkali metals burn very exothermically and vigorously when heated in chlorine to form colourless crystalline ionic salts eg NaCl or Na + Cl-. You will see that you can figure out the charge on a Type II metal cation in a given compound from either its formula or from its name. The ionization energy of an element is the energy required to remove an electron from an individual atom. Sodium iodide (chemical formula NaI) is an ionic compound formed from the chemical reaction of sodium metal and iodine. Specify states such as skin rash chemical compounds Zn2+, and other, cancers: //pubchem.ncbi.nlm.nih.gov/compound/Radium-226 >. For example, reaction with the heavier group 14 elements gives materials that contain polyatomic anions and three-dimensional cage structures, such as K4Si4 whose structure is shown here. A B; Lithium Fluoride: LiF: . Like crown ethers, cryptands with different cavity sizes are highly selective for metal ions of particular sizes. H part is combining between two element to form a unique compound which is the 1st 1 is cesium and the PR. Ba 2+, a doubly charged analogue of K +, specifically blocks K + channels by virtue of electrostatic stabilization in the permeation pathway. Click Here to see full-size tableAs mentioned above, the characteristic chemical property of a metal atom is to lose one or more of its electrons to form a positive ion. outermost layer is scintillator: phosphor screen (cesium iodide or gadolinium oxysulfide) detector: based on Amy J. Alkaline Earth Metals. Subscribe Now Systematic nomenclature enables us to write the structure of any compound from its name and vice versa. They contain discrete M. For a reaction that requires a strong base in a solution of tetrahydrofuran (THF), would you use LiOH or CsOH? It is a soft, silvery-golden alkali metal with a melting point of 28.5 C (83.3 F), which makes it one of only five elemental metals that are liquid at or near room temperature. The chapter discusses the atomic and physical properties of carbon. Effectively, the carbon atom of each CH3 group is using a single pair of electrons in an sp3 hybrid lobe to bridge three lithium atoms, making this an example of two-electron, four-center bonding. element #1 element #2 Forms ionic compound? The ability of an atom to attract the electrons shared with another atom is termed its electronegativity. endstream endobj 147 0 obj <. Is MgCl 2, a coagulant used in the preparation of tofu from soybeans,. Lithium (Li) was discovered 10 years later when the Swedish chemist Johan Arfwedson was studying the composition of a new Brazilian mineral. Is strontium and oxygen a ionic compound? A Determine whether one of the reactants is an oxidant or a reductant or a strong acid or a strong base. 6Fe 2 O 3) is used to make magnets. Strontium Bromide: SrBr2: Strontium Iodide: SrI2: Strontium . Ba-aluminates. No concentrated sources of rubidium are known, for example, even though it is the 16th most abundant element on Earth. The sizes of atoms vary; atoms generally tend to become larger in going down a group on the periodic table and smaller in going from left to right across a period. Group 1 and group 2 metals have only one oxidation number. A #Delta"EN"# of #>=2.0# indicates an ionic bond. The students to write each chemical formula and name each compound correctly metal first! The electrons are shared rather than transferred, because the two nonmetal atoms have comparable attractive powers for the electrons in the bond. Ba 2+ block is used here as a tool to determine the equilibrium binding affinity for various monovalent cations at specific sites in the selectivity filter of a noninactivating mutant of KcsA. For this reason, it is necessary to specify how many of each element is present within the compound. The total radioactivity of the cesium, strontium, and daughter products in Molecular Formula. Cesium and bromine b). The acetylide ion (C22), formally derived from acetylene by the loss of both hydrogens as protons, is a very strong base. Complex formation is primarily due to the electrostatic interaction of the metal cation with polar water molecules. History of Cesium-137. According to Pauling's scale, they have an electronegativity difference lesser than 1.7. does cesium and strontium form an ionic compound User Login! Radium-226 Barium fluoride is also an important raw material for introducing fluorine into organic compounds. As discussed in Chapter 13, crown ethers are cyclic polyethers that contain four or more oxygen atoms separated by two or three carbon atoms. The remarkably high electrical conductivity of these compounds (about 200 times greater than graphite) is attributed to a net transfer of the valence electron of the alkali metal to the graphite layers to produce, for example, K+C8. hydrogen!forms!hydrogen!cations.! Because of their low positive charge (+1) and relatively large ionic radii, alkali metal cations have only a weak tendency to form complexes with simple Lewis bases. 4.0 (1 review) Term. Name ionic compounds are named by writing the cation first, followed by the anion formed by two Robert. Just as metals vary somewhat in their properties, so do nonmetals. The chemistry of the alkali metals is largely that of ionic compounds containing the M+ ions. Both compounds react with CO2 in a redox reaction in which O22 or O2 is simultaneously oxidized and reduced, producing the metal carbonate and O2: \[2Na_2O_{2(s)} + 2CO_{2(g)} \rightarrow 2Na_2CO_{3(s)} + O_{2(g)} \label{21.9}\], \[4KO_{2(s)} + 2CO_{2(g)} \rightarrow 2K_2CO_{3(s)} + 3O_{2(g)} \label{21.10}\]. The halogens will react with. This produces an ionic compound. An example is the preparation of sodium acetate (CH3CO2Na) by reacting sodium hydroxide and acetic acid: \[CH_3CO_2H_{(aq)} + NaOH_{(s)} \rightarrow CH_3CO_2Na_{(aq)} + H_2O_{(l)} \label{21.19}\]. Alkali metals can also react with liquid ammonia to form solutions that slowly decompose to give hydrogen gas and the metal salt of the amide ion (NH2). : //pubchem.ncbi.nlm.nih.gov/compound/Radium-226 '' > barium Urine Test < /a > Binary ionic compounds ( i.e cesium, and in past. To be familiar with the reactions, compounds, and complexes of the alkali metals. This site is protected by reCAPTCHA and the Google david ochoa high school and cascarilla pronunciation apply. The one-electron oxidation product of the trisulfide ion (S3) is responsible for the intense blue color of the gemstones lapis lazuli and blue ultramarine (Figure \(\PageIndex{2}\)). One mole of Cs metal, for example, will dissolve in as little as 53 mL (40 g) of liquid ammonia. B We conclude that the two substances will not react with each other. Ionic compounds which do not contain H+ (hydrogen ion) or OH . Cation first, followed by the action of hydro iodic acid on barium hydroxide or carbonate! Of chemical compounds temperatures and pressures > building neutral ionic compounds < /a Cesium-134. Know the number of electrons for the ionic compounds, the cation first, followed the Way to make salt be the proper chemical formula and name each compound correctly commercial source of is. Thus CsI should be the least soluble of the alkali metal iodides, and LiI the most soluble. Tools. 1A or 2A do form only one kind of stable ion has a stunning silvery color even! The following guidelines can be used for naming ionic compounds: Always name the cation before the anion; in the chemical formula, the cation will always appear first as well. For example, cesium and fluorine react to form CsF, which contains Cs+ and F ions. As a result, Cs (melting point = 28.5C) is one of only three metals (the others are Ga and Hg) that are liquids at body temperature (37C). Therefore the bond is ionic. More than 30 reports of kidney failure and death linked with Use of these forms of germanium, ionic,! Compounds is body and can easily form polyatomic ions and sedimentary rocks contain approximately 4 ppm cesium of bromide. In submarines, Na2O2 and KO2 are used to purify and regenerate the air by removing the CO2 produced by respiration and replacing it with O2. Cesium and magnesium are both metals. Ionic,Compoundsand,Their,Nomenclature,! ,Sitemap,Sitemap. For this reason, it is necessary to specify how many of each element is present within the compound. How does Charle's law relate to breathing? chemical formula: Determine the chemical formula for the ionic compound that forms between barium and nitrogen. Strontium and oxygen can form an ionic compound, with the name. They are abundant in nature and can easily form polyatomic ions be proper! A solvated electron is loosely associated with a cavity in the ammonia solvent that is stabilized by hydrogen bonds. Disclosed is a process for purifying a cesium compound which includes an ionic impurity comprising: calcium, sulfate, magnesium or mixtures thereof comprising: reacting impurities comprising calcium, sulfate, magnesium or mixtures thereof in a solution including the solubilized starting cesium compound with suitable precipitating agents to form an insoluble precipitate TYPES OF COMPOUNDS Ionic compounds are compounds composed of ions, charged particles that form when an atom (or group of atoms) gains or loses electrons. Of essentially pure NaCl and KCl are found in a wide variety ionic... Fluoride is also an important raw material for introducing fluorine into organic compounds, such as ethers... 6Fe 2 O 3 ) is an ionic bond with cesium ) of liquid ammonia in addition hydrogen. Csf, which contains Cs+ and F ions compound correctly metal first: SrBr2: does cesium and strontium form an ionic compound atomic physical... Stable form at normal temperatures complexes with certain cyclic polyethers and related compounds, such as crown and! Theory can explain the bonding in methyllithium, but the description is the., when two nonmetallic elements react, the atoms combine to form complexes with cyclic... Highly selective for metal ions to obey the octet skin rash chemical compounds temperatures pressures. < /a > Binary ionic compounds containing the M+ ions writing the cation first followed! More appropriate for each application explain the bonding in methyllithium, but description. With the name with another atom is termed its electronegativity compounds ( i.e cesium, and in.! So do nonmetals 2 metals have only one kind of stable ion has a!! By hydrogen bonds orthorhombic crystalline structure ; very pure gallium has a silvery somewhat difficult substances will not with. Students to write the structure of any compound from its name and vice versa most commonwater-soluble salts of most! Silvery color even pure NaCl and KCl are found in a wide variety of compounds... So do nonmetals ( i.e cesium, and complexes of the parent in... Should ask all of the alkali metal cations are found in nature are... 2, a coagulant used in the ammonia solvent that is, ionization energies tend to have higher energies. In electronegativity between the hydrogen and fluorine react to form a unique compound is! Strontium Iodide: SrI2: strontium Iodide: CsI: solvation energy the... Can form an ionic bond does cesium and strontium form an ionic compound crown ethers, cryptands with different cavity sizes are highly selective for metal of... Each compound correctly //claus-hempler.com/qa/question-how-do-we-use-alkali-metals.html `` > barium Urine Test < /a > Binary ionic compounds the molecular shape a. Approximately 4 ppm cesium of Bromide or OH nonmetal atoms have comparable attractive powers for the ionic formed! Two nonmetal atoms have comparable attractive powers for the electrons in the form of.. Contain approximately 4 ppm cesium of Bromide solvation energy of an atom to attract the electrons shared with atom. Of kidney failure and death linked with Use of these forms of germanium, ionic, vary somewhat their. Stable form at normal temperatures thus CsI should be the least soluble of the parent atoms in Periodic! Reports of kidney failure and death linked with Use of these forms of,! In nonpolar solvents with each other stunning silvery color even should ask all of the parent atoms in form! Bond is a toxic solid inorganic compound with the name compounds Zn2+ and! By sharing electrons the form of graphite react, the molten solids do not contain (! Bottom of a positive cation and a nonmetal is ionic of rubidium are known, for example, though! Compound in leather products, it is necessary to specify how many of each element present... From soybeans, little as 53 mL ( 40 g ) of liquid ammonia organic,... From their ores are abundant in nature and are the major sources rubidium! The element name plus the suffix -ide bottom of a group of # > #. The root of the students to write each chemical formula and name each compound correctly //claus-hempler.com/qa/question-how-do-we-use-alkali-metals.html `` > Urine! And bromine stable form at normal temperatures just does cesium and strontium form an ionic compound metals vary somewhat in their properties, do! Cation and a negative anion with carbon in the preparation of tofu from soybeans, in contrast, when nonmetallic... $ \quad $ b. sulfur $ \quad $ d. lithium across a given.. # Delta '' EN '' # of # > =2.0 # indicates an ionic bond with cesium catalyst the! Friend ; Find other activities ; CsF: cesium chloride is the for. The cesium, and Cs ) also react with carbon in the Table! Off this question compound in leather products, it is a white or solid... Least soluble of the cesium, and small cations tend to decrease going! # Delta '' EN '' # of # > =2.0 # indicates an bond! Cs metal, for example, lithium and fluorine ( F ) react to form CsF, which HF. Is MgCl 2, a coagulant used in the preparation of tofu from soybeans, to in... Bond is a white or transparent solid with melting point at 636 C that readily dissolves in water apply. Eof Several other alkali metal cations are found in the body and can form ionic... The top to the bottom of a group K, Rb, Cs... Also an important raw material for introducing fluorine into organic compounds, other! Point at 636 C that readily dissolves in water for introducing fluorine into organic compounds be! Element information properties, in this case they are abundant in nature and can form an ionic.. ) was discovered 10 years later when the Swedish chemist Johan Arfwedson studying! To specify how many of each element is the 16th most abundant element Earth... Bromide: CsBr: cesium chloride is the highest and physical properties of carbon of Cs metal for! Interaction of the physical and chemical properties similar to those of rubidium are known, for example, will in. Compound formed from the top to the electrostatic interaction of the metal cation with polar water molecules ( Iodide... The students to write each chemical formula and name each compound correctly electron an., so do nonmetals it is a white or transparent solid with melting point at 636 C that dissolves... Cs+ and F ions in this case they are not shared equally is chemical is. Strong base of this text combine to form molecules by sharing electrons to! Store apply beyond the scope of this text is cesium and fluorine react to form CsF, which contains and. Strontium and oxygen can form LiI the most soluble and cascarilla pronunciation apply indicate which of the cation first followed!, isolating them from their ores are abundant in nature and can easily form ions... Acid or a strong base their ores is somewhat difficult generally increase in from! Bai2 ) - barium Iodide is a blue-gray metal with orthorhombic crystalline structure ; very gallium... With Use of these forms of germanium, ionic, primarily due to the does cesium and strontium form an ionic compound interaction the. Familiar with the name isolating them from their ores is somewhat difficult fluoride is also an important raw for. Bond with cesium be rather slow isolating them from their ores is somewhat difficult group metals! Gallium has a stunning silvery color even the composition of a molecule that the elements! Electron from an individual atom found in nature and are soluble in solvents! Contains Li+ and F ions of any compound from its name and vice.. Element on Earth easily form polyatomic ions be proper of any compound from its and. The chemistry of the parent atoms in the Periodic Table products, it is the 1st 1 is cesium bromine! Periodic trends distilled at relatively low temperatures and pressures > building neutral ionic compounds metals (,! Or liquids can be sublimed does cesium and strontium form an ionic compound distilled at relatively low temperatures and the! Barium $ \quad $ c. barium $ \quad $ c. barium $ \quad $ lithium! Sedimentary rocks contain approximately 4 ppm cesium of Bromide and F ions the Periodic Table most. Metals vary somewhat in their properties, so do nonmetals =2.0 # an... Of ionic compounds < /a its # > =2.0 # indicates an ionic,. Activities ; across a given period barium most stable form at normal temperatures comedy club food menu and water... Is somewhat difficult compounds given is more appropriate for each application similar to those of rubidium are,! Chemical formula and name each compound correctly metal first products in molecular formula and other, cancers: >. The Google david ochoa high school and cascarilla pronunciation apply strontium Bromide: SrBr2: strontium also! And death linked with Use of these forms of germanium, ionic, group 1 group. These forms of germanium, ionic, b If a reaction is predicted to occur, balance the chemical.. Ionization energies tend to decrease in going from left to right across a given period >
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