Zn2+(aq), Which species functions as the reducing agent in the following reduction-oxidation reaction? Posterior Thigh _____ 4. Ar has 18 protons 18 electrons c. -1 a) Mn > Mn2+ > Cs c. Ca Can Martian regolith be easily melted with microwaves? H2O+ B. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. b. 0.50 M, Q:gummy bear has a mass of about 2.3g and a volume of about 1ml. Solution for Which atom and/or ion is (are) isoelectronic with Br+: Se2+, Se, As-, Kr, Ga3+, Cl-? Q:Ka for formic acid (HCO2H) is 1.8 10^-4 . (i) -1; (ii) +2 View the full answer. I do remember having questions liek that in the destroyer. How many lone pairs on the central atom does SO have? [Ar]3d9, Which of the following have the same number of valence electrons? oxidation-reduction reaction. Now, both of these are isoelectronic means having with equal number of . Ar (g) + energy forms Ar 2+ + electron. CH3 S Is it possible to create a concave light? e. chlorite ion By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. satisfy the octet rule? When would this reaction be, A:Reaction : The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". O, O2-, S2-, and Se2-O is smaller than O2- because O2- has 2 extra electrons but the same amount of protons as O, so they are held less tightly and the atom is bigger. If you preorder a special airline meal (e.g. Therefore, there is one proton worth of Coulomb force attracting the valence electron of potassium. Why does the beryllium 2+ ion have a larger radius than a helium atom? period 3; group 5A Jimmy aaja, jimmy aaja. _____(ii)______bonded pairs of electrons. List the elements Na, Ca, Rb, Cl, He in order of decreasing first ionization energy. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Ka1= 7.2103, C. P paramagnetic Which arrangement is in the correct order of radius size? 1.64 a. just one structure, there is no resonance K2SO4 5 Which ion has the largest radius a se2 BF C O2 D Rb+? and Among S2-, Cl-, Ar, K+, Ca2+, Al3+, Se2-, Br-, Kr, Rb+, and Sr2+, which one has the smallest ionization energy? H;C N2(g) + 4 O2(g) + 2 NO(g) c. 3 c. 2, 6 Therefore, Sr2+ is the smallest while As3- is the largest. Get access to millions of step-by-step textbook and homework solutions, Send experts your homework questions or start a chat with a tutor, Check for plagiarism and create citations in seconds, Get instant explanations to difficult math equations, What neutral atoms are isoelectronic with the following ions? Making statements based on opinion; back them up with references or personal experience. Does electron shielding increase or stay constant moving LEFT to RIGHT across a period? c. 1, 3 CoT a. Which element has the most favorable (most negative) electron affinity? e. sulfide, Which of the following statements is correct with respect to atomic radius size for the species The Greatest energy gives what wavelength? 1 Se2->Br->Kr > Rb+ > Sr2+ because the size of anion is larger than of atom which is further larger than the cations. Select ALL the correct answers, this is a 1, 4 Coding versus Template Strands The RNA genome of phage Q\mathrm{Q} \betaQ is the nontemplate strand, or coding strand, and when introduced into the cell, it functions as an mRNA. 100% (3 ratings) Answer. Go ahead and check it out: Sr2+,Rb+,Br,Se2,As3 Mastering chemistry ^_^, Your email address will not be published. Na b. N-As ->nucleophile can open epoxide ring. e. +2, Draw possible Lewis structures for the thiocyanate anion, SCN, where C is the central atom. Why is this sentence from The Great Gatsby grammatical? This is a very tricky question, is it from destroyer? By clicking Accept All, you consent to the use of ALL the cookies. Where does this (supposedly) Gibson quote come from? Pb2+(aq) + 2 NO3-(aq) + 2 Na+(aq) + 2 I-(aq) PbI2(s) + 2 Na+(aq) + 2 NO3-(aq) Which atom and/or ion is (are) isoelectronic with Br+: Se2+, Se, As, Kr, Ga3+, Cl? We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. You also have the option to opt-out of these cookies. Why is periodicity seen in these certain properties? 0, 8 Effect of d-orbital electron shielding on atomic radius. e. -2, For the carbon atom of carbon monoxide, the formal charge is ___(i)_____ and the oxidation NaCl(g) Na+(g) + Cl-(g), Which of the following ionic compounds would be expected to have the highest lattice energy? Answer: Isoelectronic species are known as atoms or ions that have the same number of electrons. HO Ba, Which group of elements are found as diatomic molecules? NaI(aq) The atomic radius of these elements and ions will increase in the following order: O; Al^(3+), Si, Al, [O^(2-)]; Ag, Rb; Cs The semi-colons (;) indicate a new period (row). ZnO(s), Using the following portion of the activity series for oxidation half reactions Express your answer in terms of x. What Do you mean exactly by isoelectronic atoms. Cu(s) Common aspirin is acetylsalicylic acid,, A:Aspirine is a weak acid , so we will use the relation of weak acid's pH , here first we need to, Q:The mass of solute per 100 ml of solution is abbreviated as (m/v). c. +4 being compared? Select to Draw b. H30* The other trend of atomic radius or atom size occurs as you move vertically down an element group. Br is the least electronegative among all of the second atoms ( H,Cl,Br ), and Ge is the . Which bond is most covalent? The effective nuclear charge of Kr is a lot larger than the sulfur ion, therefore will pull much the electrons in harder, so to say they are relatively equal isn't the right way to look at it. H+, Which one of the following compounds behaves as an acid when dissolved in water? 8.00, When dissolved in water, of HClO4, Ca(OH)2, KOH, HI, which are bases? e. 1, 5, In the Lewis structure for IBr , I has ___(i)_____ nonbonded electrons and c. Na is larger than Na+ Second because harder to pull a full shell apart. HBr Thanks for contributing an answer to Chemistry Stack Exchange! +2 Explain briefly. b. Which set contains species that are all all of these are isoelectronic with Kr. -1 Full text of the 'Sri Mahalakshmi Dhyanam & Stotram', Is there a solution to add special characters from software and how to do it. precipitation reaction. The reason comes down to the greater effective nuclear charge experienced by the outermost electrons of bromine. What is the de Broglie wavelength of an electron (m = 9.11 x 10-31 kg) moving at a velocity of (10% of the speed of light)? Cr is larger than Cr3+ and Se2- is larger than Se. c. 2, 4 endothermic reaction because adding energy to remove electron, Which requires more energy? CO2H Al(s) with Sn(s), Determine the number of water molecules necessary to balance the reduction half reaction of that occurs in a basic solution. Imine is converted, Q:Given data from the scale up synthesis of diethyl ultraviolet < infrared < visible < microwave E. At > Sn, Which of the following is not a logical set? Whereas, krypton comprises 36 protons and 28 core electrons. S r X 2 + is exactly the same as K r, in terms of electrons and orbitals. d. +2 byproducts and the phthalhydrazide, Q:When a system is a dynamic equilibrium, A no reactions are occurring B a reaction is occurring in, Q:The concentration of HCl in stomach fluids is about 0.05 M. What is the pH of stomach fluids? The difference between the phonemes /p/ and /b/ in Japanese. A. Do tell. Calculate the angle of twist, in degrees, for a 14ft14-\mathrm{ft}14ft length of this shaft. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Making statements based on opinion; back them up with references or personal experience. All resources are student and donor supported. [H2] = 0.095 mol/L If you don't have enough information to decide, check the "not, A:Entropy is degree of randomness or disorderness. _____________ > _______________ > ____________ Enter the the Ksp expression forC2D3 in terms of the molar solubility x.? A. Ra 1-Pentanol and 1-butanol 5 Answers There is no word like addressal. a. CO NaCl(s) Na+(g) + Cl-(g) 2 3) 2, c 36/28 is greater than 19/18 man, I am not satisfied with your answer because if we look at the base of the proton then the radius of sodium should be larger than argon. f. for two defined atoms bonded together, double bonds require less energy to break than single 2-, contain how many total valence electrons? El subjuntivo What do you predict the N-O bond lengths will be in the nitrite ion, NO? A:Answer: Why? b. N3-, P3-, As3-, Sb3- strong electrolytes. It does not store any personal data. c. N-O a. This cookie is set by GDPR Cookie Consent plugin. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. a. there is a C-N double bond and a C-S double bond The, Q:Calculate the pH of the following solutions: 4. Patterns in Ionic Radii . orbital (c) Therefore, there are eight protons worth of Coulomb force attracting the valence electrons of krypton. Si weak electrolytes. b. . a. P You should think it as no. Volume = 1 ml = 0.001 L (1L = 1000 ml) Br 18=>Krypton has larger Vanderwaals radius than Neon=>O- and F- being the representatives of a Neon atom, have thus no chance of having the highest atomic radius=> choice remains between Se- & Rb+. H2SO4(aq). Which of the following three sets consist of atoms or ions with the same electron configuration in the ground state? The more pull, the tighter the electrons orbit. D. Ra > Be NaCl(s) + H2O(l) Na+(aq) + Cl-(aq) b. Ga < As < P < O < S < F Which of the following is not true with respect to atomic radius? Answer: The answer is Rubidium Rb+. _____(ii)______bonded pairs of electrons. Although it is true that $\ce{Kr}$ and $\ce{Sr^2+}$ have the same electron orbital configuration and $\ce{Sr^2+}$ has two more protons than $\ce{Kr}$, $\ce{Sr^2+}$'s greater nuclear attraction is likely countered by the nature of metal ions being more willingly to lose electrons, which implies the electrons are more loosely held by the nucleus than the noble gas $\ce{Kr}$. What Do you mean exactly by isoelectronic atoms. (Krypton size= 88 pm, while Sr2+ is 132 pm.). Na, What is the ground-state electron configuration of Co? Calculate the, Q:Not yet answer See notes. Which of these wavelengths is in the UV region? Calculate the pH of a solution of 0.157 M pyridine.? C. K > Se Learn more about Stack Overflow the company, and our products. single replacement reaction. What is smaller a negative ion or positive ion? [Ar]4s23d7 [CO] = 0.035 mol/L a. The maximum shear stress developed in the shaft is not to exceed 8000psi8000 \mathrm{~psi}8000psi. What would be the fate of the template strands when they entered a new cell? Why do academics stay as adjuncts for years rather than move around? Why ionization energy of Thallium is higher than that of Indium? for this question, you're asked to arrange the ice electronic series of cat ions and an ions in order of increasing atomic radius. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. So this question is invalid because you cannot compare atomic radius with ionic radius? Seattle, Washington(WA), 98106. For sure, Na+ has larger radius than Mg++. Arrange the following isoelectronic series in order of increasing atomic radius: Se2, Sr2+, As3, Rb+, and Br. Which of the following is a correct definition of electronegativity? to have an octet Why does Mg2+ have the ionic radii bigger than Ca2+. Use either substitution or integration by parts to evaluate each integral. c. B is too electropositive to satisfy the octet rule in compounds [CH3OH] = 0.065, Q:Consider the following reaction: N2(g) + 3H2(g) 2NH3(g) A. No size data are quoted, making the context of this question difficult to trace. NaCNBH, following questions, A:Lewis dot structure showing the arrangement of electrons in the molecule. A. O paramagetic d. N-P 12mg a. As3-b. 2 N205(s) The thing is that in a crystal lattice it isn't quite the same as in the gas phase. -2 (i) 1 (ii) +1 b. N, Which chemical process is associated with the lattice energy for sodium chloride? B. Ba+ Is it suspicious or odd to stand by the gate of a GA airport watching the planes? ASX =, Q:Determine the minimum volume of 5.7 M HNO3 required to completely dissolve the sample. Me molesta que mis padres no ______ (cuidar) su alimentacin.. 3. Ignore inorganic TRIAL 3 oxidation-reduction reaction. Sometimes on Family Guy when there about to take someones heart out they say, calimar or maybe its spelled different. a. K+ Ca(OH)2 and KOH, Bruce Edward Bursten, Catherine J. Murphy, H. Eugene Lemay, Matthew E. Stoltzfus, Patrick Woodward, Theodore E. Brown, Biochem Lecture 3 - Thermo and Hydrophobic Ef. Thus, helium is the smallest element, and francium is the largest. C. S2- As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Sr CO2=, Q:Which amomg the fragments below will be dectected by mass Spectrophotometer? Which of these isoelectronic ions, Ba2+, Cs+, or La3+, is (a) the largest? number is _____(ii)_____. nonelectrolytes. +6 d. phosphate ion c. it may take energy to break a chemical bond, or release energy when a chemical bond is halogens, Which of the hydrogen halide acids is used to etch glass? d. (i) 3 (ii) 0 0, 3 $ I am not satisfied with your answer because if we look at the base of the proton then the radius of sodium should be larger than . isoelectronic, AND are also arranged properly in the order of smallest (first) to largest (last) What is the ground-state electron configuration of the ion Cu2+? d. 4 d. Mg2+ is larger than Mg, Which of the following is NOT isoelectronic with Kr? (a) Pb4+ (b) Br (c) S2 (d) Ni3+. rev2023.3.3.43278. Use MathJax to format equations. c. 1,2,3-Propanetriol and 1-hexanol. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Even with that you will see valence electron for K is more shielded than for Kr. Oxygen ion is the biggest ion among 3 of these.because as per the gain of electrons increases the nuclear charge increases..thus nuclear effect increases.the outer most shell gets shrink towards the nucleus and hence the size decrease. Draw a structural example of a primary, secondary and tertiary alcohol. b. Mo6+ Acetic acid (CH3CO2H), formic acid (HCO2H), hydrofluoric acid (HF), ammonia (NH3), and methylamine (CH3NH2) are commonly classified as c. (i) 0; (ii) +1 c. (i) 2 (ii) +1 How many lone pairs on the central atom does NF have? Sr2+ is exactly the same as Kr, in terms of electrons and orbitals. This is the way things have been done in literature and if you are not satisfied then consider the fact that not all electrons are shielding the nucleus to same extent. Due to the poor shielding effect, of "d" orbital of" Kr" so the "z"effect is increase and radius is decrease but in "K" no poor shielding effect so it's radius is greater than "Kr". a. Lowest electron affinity and highest ionization energy is? a. N-S Asking for help, clarification, or responding to other answers. How many lone pairs on the central atom does CH have? 3. c. N-Se CO32-(aq) + 2 H+(aq) H2O(l) + CO2(g) What is the ion charge on this ion? 0, 4 THANKS! Release is increasing numbers or decreasing? CuSO4(aq) The identical blocks are oscillating in simple harmonic motions with equal amplitudes. _____(ii)______bonded pairs of electrons. Its ion would be the largest among the five. Electronic configurations both of the ions are identical, but Al3+ has 13 protons and O2- has 8 protons. Phosphorus comes the first among the five species and contains the least number of protons. This . b. 0 Example #2: Arrange the atoms and/or ions in order of decreasing ionic radius: Fe2+, Mn+, Ni2+, Zn2+. Why is the 2s orbital lower in energy than the 2p orbitals? TRIAL 2 Mg is, Q:[H2] = 0.095 mol/L, [CO] = 0.035 mol/L, [CH3OH] = 0.065 mol/L. b. INCORRECT Na(s) + 1/2 Cl2(g) NaCl(s) 5 Zn(s) A. F- 6, 6 Mass is not technically the same. What is the electron configuration of the Ba3+ ion? The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. d. Ie. A. But the numbers you came up with don't make that much sense. What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? This cookie is set by GDPR Cookie Consent plugin. Rydberg constant, Q:Nitration reaction takes away electrons from the ring deactivating the ring and lessening the, A:Nitration is a process in which there is the replacement of a hydrogen atom (organic compound) with, Q:A diprotic acid, H, A, has acid dissociation constants of K = 2.32 x 10-4 and K2 = 5.84 x 10-12., Q:The molar solubility of Ag3PO4is equal to 1.63x 10-5mol/L at a certain temperature. What is Kb for the formate ion (HCO2)? But when you toss two additional electrons ont. form where the central S atom bears a formal charge of 0? b. CO2 Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. HBr, HCl, HClO4, KBr, and NaCl are all classified as Sr+2 < Rb+ < Br- < Se 2- < As 3-Arrange the following elements in order of decreasing first ionization energy: Bi, Ar, Te, and Br. b. I thought they were the same thing. d. K Atom size increases as you . Why Doesn't Snow Melt When You Put a Lighter to It? The combustion reaction CH4(g) + 2 O2(g) CO2(g) + 2 H2O(l) can be classified as a(n) Which ions in the following list are not likely to be found in chemical compounds: K2+, Cs+, Al4+, F2, and S2+? Do "superinfinite" sets exist? Hydronium ion concentration= 6.110-2M b. the ability of an atom in a molecule to attract electrons to itself , Free Printable Periodic Tables (PDF and PNG), Periodic Table with Charges - 118 Elements. e. Ca2+, Ar, S2-, P3-, Which of the following are isoelectronic with the sulfate ion? The only difference between the two, is that S r X 2 + has a couple of extra protons in the nucleus (and probably a couple of extra neutrons too, but these don't influence ionic/atomic size). d.P3, S2-, Ar, Ca2+ A:We have to predict the fragment that can be detected. What conducts heat and electricity, forms cations, basic, ionic and is oxidation? j. Sr2+ Just clear tips and lifehacks for every day. g. perchlorate ion, Which of the following statements is/are false? (a)(a)(a) vAmax=vBmaxv_{\text{A} \max }=v_{\text{B} \max }vAmax=vBmax (b)(b)(b) vAmax=2vBmaxv_{\text{A} \max }=2 v_{\text{B} \max }{ }^{\prime}vAmax=2vBmax (c)(c)(c) vAmax=4vBmaxv_{\text{A} \max }=4 v_{\text{B} \max }vAmax=4vBmax (d)(d)(d) This comparison cannot be done by using the data given. How is 36/28 and 19/18 same ? Combustion analysis of a 3.0078g3.0078 \mathrm{~g}3.0078g sample of digitoxin, a compound used for the treatment of congestive heart failure, gave 7.0950g7.0950 \mathrm{~g}7.0950g of CO2\mathrm{CO}_2CO2 and 2.2668g2.2668 \mathrm{~g}2.2668g of H2O\mathrm{H}_2 \mathrm{O}H2O. e. NO3, For the carbonate ion, CO, (i) how many equivalent resonance structures can be drawn, Q:5. Question: Kr, Sr2+, Br-, Rb+, Se2- Which has the largest radius? c. 0, 5 Comparing Vander Waal's radius with atomic radius doesn't make sense. We also use third-party cookies that help us analyze and understand how you use this website. d. phosphide 2Na+(aq) + CO32-(aq) + 2H+(aq) + 2Cl-(aq) 2Na+(aq) + 2Cl-(aq) + H2O(l) + CO2(g) i. Ca2+ CH3, Q:The heat of vaporization AH, of methanol (CH,OH) is 35.3 kJ/mol. a. O2- is larger than O Did this satellite streak past the Hubble Space Telescope so close that it was out of focus? In isoelectronic species, there the number of electrons would be equal but the elements would be different. orbital (d) The wave characteristics of a large, moving object, such as an automobile, are difficult to observe because the. Consequently, there is more Coulomb force attracting the valence electrons of krypton than there is attracting the valence electron of potassium; accordingly, the atomic radius of krypton is smaller than the atomic radius of potassium. Two electromagnetic waves are represented below. a. aluminum hydroxide Select ALL the correct answers, this is a multiple response question HI -1 Cl- a. What element has the smallest effective nuclear charge and largest radius? ZnO(s) + C(s) Zn(s) + CO(g) e. 4, 2, In the Lewis structure for ICl , where I is the central atom, I contains ___(i)_____ nonbonded electrons and _____(ii)______bonded electrons. e. 6, 4, In the Lewis structure for ICl3, I has ___(i)_____ lone pairs of electrons and Gas phase strontium(II) has a smaller ionic radius than krypton's atomic radius. a. Sb3-, As3-, P3-, N3- This problem has been solved! pairs of electrons and _____(ii)______bonded pairs of electrons. OH It does a bit but better if you go by the way it has been discussed. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. We've added a "Necessary cookies only" option to the cookie consent popup. Indicate which is larger in each of the following two sets. d.24 What are good insulators, brittle, acidic, form anions and reduction? Because selenium is directly below sulfur, we expect the Se2 ion to be even larger than S2.Ionic Radii and Isoelectronic Series. 1tanxdx\int \frac{1}{\tan x} d xtanx1dx. all of these are isoelectronic with Kr, Which of the following are isoelectronic with As3-? For this time, calculate: (b) the mutual inductance of the two solenoids; Two systems each consist of a spring with one end attached to a block and the other end attached to a wall. Is RB+ bigger than Se2? What peak should be present in your starting material, salicylic acid, but missing in your, A:First we would draw structures of compounds and check which functional group is present in salicylic, Q:How do you determine which salts have a higher vs lower solubility when HCOOH (formic acid) is the weak organic acid and HCOO- (formate ion) is its conjugate base. The chemical formula for sulfurous acid is No creo que Susana _____ (seguir) sobre los consejos de su mdico. Both increase as one traverses a period from left to right and both decrease as one descends a group, How many valence shell electrons does an atom of aluminum have? Cr is larger than Cr3+ and Se is larger than Se2-. There are certain rules [slaters rule] made and which works in most cases by which you can actually predict how much of nuclear charge is acting on the electron. vegan) just to try it, does this inconvenience the caterers and staff? a. b. And it is well known that (i) ANIONS are larger than their parent atoms given that they physically expand the electronic shell of the particle, and that (ii) cations are smaller than parents in that we remove a valence electron that PREVIOUSLY defined the radius of the atom. B. Neon is above Krypton in grp. 3 Answers C5H5N in water > C5H5NH+ & OH- Kb = [C5H5NH+] [OH-] / [C5H5N] 1.5e-9 = [x] 1. 11 mg a. Which member of each of the following pairs of compounds would you expect to be more soluble in water? Analytical cookies are used to understand how visitors interact with the website. b. It only takes a minute to sign up. 2 What is causing the plague in Thebes and how can it be fixed? a. Where does this (supposedly) Gibson quote come from? Learn more about Stack Overflow the company, and our products. A buffer solution is the type of solution that, on adding the small quantity of acid or, Q:Exercise 16.133 f. chlorate ion K What is the value of the equilibrium, A:Given :- Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer, David W. Oxtoby, H. Pat Gillis, Laurie J. Butler, Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell, Which atom and/or ion is (are) isoelectronic with Br+: Se2+, Se, As, Kr, Ga3+, Cl? b. it always releases energy when a chemical bond is broken d. 4, 8 B. b. 2H2(g) + CO(g) <---> CH3OH(g) How many lone pairs on the central atom does CO have? d. 1, 4 Atomic radii vary in a predictable way across the periodic table. Why is the atomic radius of krypton smaller than that of potassium? D. Group 7A form anions 28 trend in group 13. Krypton has an atomic radius of 88 pm which is less than 132 pm. b. Ge-F Explanation: While moving from left to right in periodic table the nuclear attraction between nucleus and electrons increases and the size decreases. If you could compare the 'H NMR and IR spectra of vanillin with the 'H NMR and IR, Q:What is the pH of a solution that is prepared by dissolving 3.30 g of (NH4)2SO4 in water, adding, A:Answer: Therefore it reacts with amine forms imine. The cookie is used to store the user consent for the cookies in the category "Analytics". Highest electron affinity and lowest ionization energy is? Multiple bonds, when formed between two defined atoms such as C and N, tend to be These are different, incomparable kinds of bigness.

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