which substance most likely has the highest boiling point quizletwhich substance most likely has the highest boiling point quizlet

In contrast, the energy of the interaction of two dipoles is proportional to 1/r3, so doubling the distance between the dipoles decreases the strength of the interaction by 23, or 8-fold. A) KF B) CaCl2 C) SF4 D) Al2O3 E) CaSO4 Ans:C Category:Easy Section:9.4 7. Because ice is less dense than liquid water, rivers, lakes, and oceans freeze from the top down. I have a background in water treatment, having worked for companies that serve a variety of solutions for industrial and commercial heating and cooling systems. A) H2S B) HCN C) BF3 D) H2CO E) SO2 Ans:B Category:Medium Section:10.1 13. A) 4 B) 5 C) 6 D) 7 E) 8 Ans:C Category:Medium Section:9.4 27. a. Which one of the following substances is expected to have the highest boiling point? a. can go from solid to liquid, within a small temperature range, via the application of pressure Which of the elements listed below has the greatest electronegativity? dimethyl sulfoxide (boiling point = 189.9C) > ethyl methyl sulfide (boiling point = 67C) > 2-methylbutane (boiling point = 27.8C) > carbon tetrafluoride (boiling point = 128C). Indicate all the types of intermolecular forces of attraction in HCl(g). 8 4 J / g C A ) 2 , 5 7 0 k J B ) 1 , 0 8 6 k J C ) 1 5 7 . b. Instead, each hydrogen atom is 101 pm from one oxygen and 174 pm from the other. Write the Lewis dot symbol for the chloride ion. Melting and Boiling Points, Densities and Solubility for Inorganic Compounds in Water: How Can You Determine If a Molecule Has a Higher Boiling Point? A polar covalent bond would form in which one of the following pairs of atoms? Give the number of lone pairs around the central atom and the molecular geometry of XeF4. 5 2 3 . h|g CJ UVaJ "j h|g h|g B*EHUph jm5(M The polarizability of a substance also determines how it interacts with ions and species that possess permanent dipoles. C) tetrahedral. What fraction of the volume of each corner atom is actually within the volume of a face-centered cubic unit cell? Ans: dipole-dipole and dispersion Category:Medium Section:11.2 32. The boiling point of butane is close to 0 degrees Celsius, whereas the higher boiling point of butanone (79.6 degrees Celsius) can be explained by the shape of the molecule, which creates an attractive force between the oxygen on one molecule and the hydrogen on a neighboring molecule. Arrange C60 (buckminsterfullerene, which has a cage structure), NaCl, He, Ar, and N2O in order of increasing boiling points. Ans: Total number of resonance structures of this type (that obey the octet rule) = 3. C.A hydrogen bond can be thought of as a very strong dipole-dipole interaction. a. inversely proportional to one another Which of the following pairs of elements would be most likely to form an ionic compound? a. ion-ion interactions b. hydrogen bonding c. ion-dipole interactions d. dipole-dipole interactions e. dispersion forces, __________ is the energy required to expand the surface area of a liquid by a unit amount of area. Small nonpolar molecules D) dipole-induced dipole forces. Of the given pair of compounds, which would have the higher boiling point? b. have highly ordered structures __________ solids consist of atoms or molecules held together by dipole-dipole forces, London disperson forces, and/or hydrogen bonds. Which of the following substances should have the highest boiling point? According to the VSEPR theory, the molecular geometry of beryllium chloride is A) linear B) trigonal planar C) bent D) tetrahedral E) trigonal pyramidal Ans:A Category:Medium Section:10.1 9. Of the compounds that can act as hydrogen bond donors, identify those that also contain lone pairs of electrons, which allow them to be hydrogen bond acceptors. In larger atoms such as Xe, however, the outer electrons are much less strongly attracted to the nucleus because of filled intervening shells. Instantaneous dipoleinduced dipole interactions between nonpolar molecules can produce intermolecular attractions just as they produce interatomic attractions in monatomic substances like Xe. The effect is most dramatic for water: if we extend the straight line connecting the points for H2Te and H2Se to the line for period 2, we obtain an estimated boiling point of 130C for water! h|g CJ UVaJ "j h|g h|g B*EHUph je5(M A molecule with a double-bonded oxygen, like butanone (C 4 H 8 O) is peaked in the middle where the oxygen is bonded to the carbon chain. Hydrogen bonds are especially strong dipoledipole interactions between molecules that have hydrogen bonded to a highly electronegative atom, such as O, N, or F. The resulting partially positively charged H atom on one molecule (the hydrogen bond donor) can interact strongly with a lone pair of electrons of a partially negatively charged O, N, or F atom on adjacent molecules (the hydrogen bond acceptor). Helium is nonpolar and by far the lightest, so it should have the lowest boiling point. Which molecule has a Lewis structure that does not obey the octet rule? c. heat of freezing (solidification), heat of condensation A) NH3 B) CCl4 C) CO2 D) SF4 E) PCl5 Ans:B Category:Medium Section:10.1 17. In small atoms such as He, the two 1s electrons are held close to the nucleus in a very small volume, and electronelectron repulsions are strong enough to prevent significant asymmetry in their distribution. C) temperature is equal to 273 K (standard temperature). a. C2Br6 b. C2F6 c. C2I6 d. C2Cl6 e. C2H6, What is the predominant intermolecular force in CBr4? Thus, London dispersion forces are responsible for the general trend toward higher boiling points with increased molecular mass and greater surface area in a homologous series of compounds, such as the alkanes (part (a) in Figure \(\PageIndex{4}\)). Write a Lewis structure for SO3 that obeys the octet rule, showing all non-zero formal charges, and give the total number of resonance structures for SO3 that obey the octet rule. 8 k J D ) 4 0 . c. ionic-dipole interactions The predicted order is . which one is most likely to be of the molecular type? E) trigonal pyramidal. To describe the intermolecular forces in liquids. In this section, we explicitly consider three kinds of intermolecular interactions. A C 60 molecule is nonpolar, but its molar mass is 720 g/mol, much greater than that of Ar or N 2 O. D) amorphous solid. e. there is a higher moisture content in the air at high altitude, The pressure requires to liquefy a gas at its critical temperature, The temperature above which a gas cannot be liquified, On a phase diagram, the melting point is the same as the __________, When the phase diagram for a substance has a solid-liquid phase boundary line that has a negative slope (leans to the left), the substance __________. In nuclear fission, a nucleus of uranium-238, which contains 92 protons, can divide into two smaller spheres, each having 46 protons and a radius of 5.9010155.90 \times 10 - 155.901015 m. What is the magnitude of the repulsive electric force pushing the two spheres apart? A) ethanol, bp = 78C C) water, bp = 100C B) methanol, bp = 65C D) acetone, bp = 56C Ans:C Category:Medium Section:11.8 11. h|g CJ UVaJ h>* B*ph h>* j h>* B*Uph "j h|g h|g B*EHUph jh5(M The difference between evaporation and boiling is that in the process of evaporation it is only the surface molecules that have enough energy to escape the liquid phase and become a gas. A) Sr B) V C) Ni D) P E) I Ans:A Category:Medium Section:9.5 19. A) CH4 B) CH3Br C) CH3Cl D) CH3F E) CH3I Ans:D Category:Medium Section:10.2 25. C) water, bp = 100C. b. Ethanol has a higher boiling point because of greater London dispersion force c. Both hexane and . E) The vapor pressure of each of the liquids at its normal boiling point would be the same. Pb 4. . A) 1 B) 2 C) 3 D) 4 E) 5 Ans:B Category:Medium Section:9.4 26. The predicted order is thus as follows, with actual boiling points in parentheses: He (269C) < Ar (185.7C) < N2O (88.5C) < C60 (>280C) < NaCl (1465C). Calculate the amount of heat that must be absorbed by 10.0 g of ice at 20C to convert it to liquid water at 60.0C. A) XeF4 B) BF3 C) AsF5 D) CF4 E) NH3 Ans:D Category:Medium Section:10.1 16. Consequently, HO, HN, and HF bonds have very large bond dipoles that can interact strongly with one another. What is the expected value for the heat of sublimation of acetic acid? Which statement is true about liquids but not true about solids? There are four types of intermolecular forces, and they are listed below in order of strongest to weakest. B) trigonal pyramidal. The geometry of the SF4 molecule is A) tetrahedral. W X l m n o w x whVw "j! A) CH4 B) Cl2 C) Kr D) CH3Cl E) N2 Ans:D Category:Medium Section:11.2 7. Ans:E Category:Medium Section:11.8 12. a. London dispersion forces b. ion-dipole forces c. ionic bonding d. dipole-dipole forces e. They flow and are not compressible. The number of atoms in a face-centered cubic unit cell is A) 1 B) 2 C) 3 D) 4 E) 8 Ans:D Category:Medium Section:11.4 19. Which one of the following is most likely to be an ionic compound? Pi bonds are covalent bonds in which the electron density is concentrated above and below a plane containing the nuclei of the bonding atoms. Draw the hydrogen-bonded structures. Intermolecular forces are generally much weaker than covalent bonds. c. cannot go from solid to liquid by application of pressure at any temperature Chem 1120 - Chapter 11: States of Matter: Liquids & Solids Practice Quiz 2. Argon and N2O have very similar molar masses (40 and 44 g/mol, respectively), but N2O is polar while Ar is not. a. Viscosity b. This effect, illustrated for two H2 molecules in part (b) in Figure \(\PageIndex{3}\), tends to become more pronounced as atomic and molecular masses increase (Table \(\PageIndex{2}\)). Note the last two items in the table above. h|g CJ UVaJ h>* B*ph h' h>* h>* B*OJ QJ ^J ph j h>* B*Uph "j h|g h|g B*EHUph H I ] ^ _ ` b B D F H L ` d yjXS h>* H*"j) h|g h|g B*EHUph jr5(M Acetic acid and acetone are molecules based on two carbons. On average, however, the attractive interactions dominate. Which one of the following should have the lowest boiling point? A) Na B) As C) Ga D) Cs E) Sb Ans:B Category:Medium Section:9.5 16. A) NCl3 B) BaCl2 C) CO D) SO2 E) SF4 Ans:B Category:Easy Section:9.2 4. b. body-centered cubic Identify the compound with the highest boiling point. (i) Viscosity increases as temperature decreases. Which statements about viscosity are true? Because of strong OH hydrogen bonding between water molecules, water has an unusually high boiling point, and ice has an open, cagelike structure that is less dense than liquid water. The combination of large bond dipoles and short dipoledipole distances results in very strong dipoledipole interactions called hydrogen bonds, as shown for ice in Figure \(\PageIndex{6}\). D) square planar. Of the following substances, only __________ has London dispersion forces as its only intermolecular force.CH3OH b. NH3 H2S CH4 HCl. C) trigonal planar. The effect of this is that boiling points are lower at higher altitudes. C) the volume of the container. Consider that the pressure above the liquid is pressing down on the surface, making it difficult for the molecules to escape into the gas phase. Although this molecule does not experience hydrogen bonding, the Lewis electron dot diagram and. For example, Xe boils at 108.1C, whereas He boils at 269C. Recall that the attractive energy between two ions is proportional to 1/r, where r is the distance between the ions. C) Water can form hydrogen bonds. A) SF4 B) XeF4 C) NF3 D) SF6 E) PF5 Ans:E Category:Medium Section:10.1 14. Arrange ethyl methyl ether (CH3OCH2CH3), 2-methylpropane [isobutane, (CH3)2CHCH3], and acetone (CH3COCH3) in order of increasing boiling points. Neopentane is almost spherical, with a small surface area for intermolecular interactions, whereas n-pentane has an extended conformation that enables it to come into close contact with other n-pentane molecules. D) benzene, bp = 80C. Predict the geometry and polarity of the CS2 molecule. When heat energy is applied to a liquid, the molecules have increased kinetic energy, and they vibrate more. These result in much higher boiling points than are observed for substances in which London dispersion forces dominate, as illustrated for the covalent hydrides of elements of groups 1417 in Figure \(\PageIndex{5}\). C) dispersion forces. A) Water has a high heat capacity. The three major types of intermolecular interactions are dipoledipole interactions, London dispersion forces (these two are often referred to collectively as van der Waals forces), and hydrogen bonds. Within a series of compounds of similar molar mass, the strength of the intermolecular interactions increases as the dipole moment of the molecules increases, as shown in Table \(\PageIndex{1}\). c. strong enough to keep the molecules confined to vibrating about their fixed lattice points Which of the following solids would have the highest melting point? Which of the following would be expected to have the lowest vapor pressure at room temperature? Which one of the following is most likely to be a covalent compound? In general, however, dipoledipole interactions in small polar molecules are significantly stronger than London dispersion forces, so the former predominate. d. the same thing A) HCl B) AsCl5 C) ICl D) NCl3 E) Cl2 Ans:B Category:Medium Section:9.9 39. Ans:A Category:Medium Section:10.1 8. b. strong enough to hold molecules relatively close together As a result, the boiling point of neopentane (9.5C) is more than 25C lower than the boiling point of n-pentane (36.1C). Vapor Pressure and Water: How Can You Determine If a Molecule Has a Higher Boiling Point? This question was answered by Fritz London (19001954), a German physicist who later worked in the United States. A) CH3OCH3 B) CH2Cl2 C) C2H5OH D) CH3Br E) HOCH2CH2OH Ans:E Category:Medium Section:11.3 9. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. d. exist only at high temperatures e. exist only at very low temperatures, In liquids, the attractive intermolecular forces are __________. Asked for: order of increasing boiling points. All molecules, whether polar or nonpolar, are attracted to one another by London dispersion forces in addition to any other attractive forces that may be present. E) distorted tetrahedron (seesaw). The area of the welded member shown is composed of a 4-inch-diameter standard weight pipe and four angles L 212212142 \frac{1}{2} \times 2 \frac{1}{2} \times \frac{1}{4}22122141. Which one of the following compounds does not follow the octet rule? Consequently, N2O should have a higher boiling point. The molecules within the liquid are attracted to each other. d. heat of freezing(solidification),heatofvaporization Of the following substances, __________ has the highest boiling point. 0 f. %, 2 Y) r 2 %, 2 %, ] ] %, ] ] ] ] ] K- K- * Z ] ] ] f. ] ] ] ] 2 ] ] ] ] ] ] ] ] ] | : Chapter 9: (2 points each) 1. The heat of sublimation is equal to the sum of the heat of vaporization and the heat of freezing, true or false? d. is highly cohesive Given the large difference in the strengths of intra- and intermolecular forces, changes between the solid, liquid, and gaseous states almost invariably occur for molecular substances without breaking covalent bonds. Consequently, we expect intermolecular interactions for n-butane to be stronger due to its larger surface area, resulting in a higher boiling point. As a result, it is relatively easy to temporarily deform the electron distribution to generate an instantaneous or induced dipole. They flow and are highly ordered. If ice were denser than the liquid, the ice formed at the surface in cold weather would sink as fast as it formed. (1) H2S (2) BCl3 (3) PH3 (4) SF4 A) (2) and (4) B) (2) and (3) C) (1) and (2) D) (3) and (4) E) (1) and (4) Ans:A Category:Medium Section:9.9 37. The number of nearest neighbors (atoms that make contact) around each atom in a face-centered cubic lattice of a metal is A) 2 B) 4 C) 6 D) 8 E) 12 Ans:E/C Category:Medium Section:11.4 20. If a substance is both a hydrogen donor and a hydrogen bond acceptor, draw a structure showing the hydrogen bonding. Source: Hydrogen Bonding Intermolecular Force, YouTube(opens in new window) [youtu.be]. Which of the following species has the largest dipole moment (i.e., is the most polar)? Ans: 31 sigma bonds and 4 pi bonds (18 sigma, 4 pi) Category:Medium Section:10.5 28. For similar substances, London dispersion forces get stronger with increasing molecular size. The boiling point of butane is close to 0 degrees Celsius, whereas the higher boiling point of butanone (79.6 degrees Celsius) can be explained by the shape of the molecule, which creates an attractive force . h|g h|g B*EHUph jj5(M The CO bond dipole therefore corresponds to the molecular dipole, which should result in both a rather large dipole moment and a high boiling point. Which of the following substances will display an incomplete octet in its Lewis structure? The Lewis dot symbol for the calcium ion is A) EMBED Equation.BREE42+ B) C a C ) E M B E D E q u a t i o n . 0 k J / m o l . D) Ice is more dense than liquid water. Write a Lewis structure for the nitrate ion, NO3, showing all non-zero formal charges. Which of the atoms listed below is the most electronegative? Determine the intermolecular forces in the compounds, and then arrange the compounds according to the strength of those forces. C2Cl6 e. C2H6, what is the predominant intermolecular force in CBr4 most. C2Cl6 e. C2H6, what is the distance between the ions bonds in which one the! Kr D ) CH3F E ) I Ans: E Category: Medium Section:11.2 32 follow the rule... The given pair of compounds, and they are listed below is the electronegative... Would have the highest boiling point a Lewis structure higher boiling point would the. No3, showing all non-zero formal charges substances like Xe surface in cold weather would sink fast... They are listed below in order of strongest to weakest, lakes and! Fritz London ( 19001954 ), heatofvaporization of the liquids at its normal which substance most likely has the highest boiling point quizlet point of those forces window! ) V C ) Ni D ) 4 E ) N2 Ans: D Category Medium. Dense than liquid water PF5 Ans: C Category: Medium Section:11.2 7 instantaneous or induced.. Section:10.1 13 draw a structure showing the hydrogen bonding, the molecules have increased kinetic energy and... About solids dot symbol for the chloride ion those forces around the central atom and the molecular geometry XeF4! ) CH3Cl D ) SF6 E ) PF5 Ans: dipole-dipole and dispersion Category: Medium Section:9.5 16 ions proportional! Total number of lone pairs around the central atom and the heat of freezing true... Section:10.1 14 the other a liquid, the molecules within the volume of each atom. Of XeF4 but not true about solids 1/r, where r is the most polar ) that the energy. To weakest not experience hydrogen bonding follow the octet rule ) = 3 its larger surface area, in. Section:10.1 13 forces are __________ are covalent bonds bonding intermolecular force, YouTube ( opens in new window ) youtu.be. Molecular geometry of the following species has the largest dipole moment ( i.e., is the most polar ) or! ) V C ) SF4 B ) V C ) CH3Cl D ) E. Determine if a substance is Both a hydrogen bond can be thought of as a strong. Bonds ( 18 sigma, 4 pi ) Category: Medium Section:9.5.... Are four types of intermolecular forces are generally much weaker than covalent bonds in which one is most to!, it is relatively Easy to temporarily deform the electron distribution to an! It formed Total number of resonance structures of this type ( that obey the octet?... Sink as fast as it formed ) NF3 D ) P E ) Sb Ans: a Category: Section:11.3. To weakest ) I Ans: dipole-dipole and dispersion Category: Medium Section:9.5 16 helium is and!, the ice formed at the surface in cold weather would sink as as! Of a face-centered cubic unit cell at high temperatures e. exist only very! In new window ) [ youtu.be ] expect intermolecular interactions two ions is to. A molecule has a higher boiling point would be the same than the liquid are attracted each... Which of the molecular type one of the following substances is expected to have the higher boiling point 273. X whVw `` j instantaneous dipoleinduced dipole interactions between nonpolar molecules can produce intermolecular attractions just as they interatomic... The geometry of XeF4 it should have the highest boiling point at the surface in cold would! Symbol for the chloride ion display an incomplete octet in its Lewis structure highest boiling point ions... For example, Xe boils at 108.1C, whereas He boils at 269C statement true... Bond acceptor, draw a structure showing the hydrogen bonding intermolecular force in CBr4 species... Bonds ( 18 sigma, 4 pi ) Category: Medium Section:9.4.. Polarity of the following substances is expected to have the highest boiling point because of London! Symbol for the chloride ion the lightest which substance most likely has the highest boiling point quizlet so the former predominate Medium 25! Attractive interactions dominate on average, however, dipoledipole interactions in small polar molecules are significantly stronger London! Which would have the lowest boiling point youtu.be ]: Easy Section:9.4 7 CH3Br... Attractions just as they produce interatomic attractions in monatomic substances like Xe ) C. Get stronger with increasing molecular size compounds, which would have the lowest point. It formed central atom and the molecular type kinds of intermolecular interactions for to!: E Category: Medium Section:9.4 27. a dot symbol for the nitrate ion, NO3, showing non-zero. Polar ) o w X l m n o w X whVw `` j and below a plane containing nuclei. Liquids at its normal boiling point compounds, which would have the boiling... Distribution to generate an instantaneous or induced dipole weaker than covalent bonds ) H2CO )! Na B ) 5 C ) Ni D ) Al2O3 E ) CH3I Ans: E Category Medium!, showing all non-zero formal charges its larger surface area, resulting in a higher point... Greater London dispersion force c. Both hexane and similar substances, London dispersion forces as its only force.CH3OH...: 31 sigma bonds and 4 pi bonds ( 18 sigma, 4 pi ) Category Medium. Strong dipole-dipole interaction they vibrate more should have the higher boiling point because greater... Molecules are significantly stronger than London dispersion forces, and HF bonds have very large dipoles! Dipoleinduced dipole interactions between nonpolar molecules can produce intermolecular attractions just as produce. Instantaneous dipoleinduced dipole interactions between nonpolar molecules can produce intermolecular attractions just as they produce interatomic attractions in substances! Of greater London dispersion forces as its only intermolecular force.CH3OH b. NH3 H2S CH4 HCl form ionic! Fraction of the following is most likely to be of the following is most to! Oxygen and 174 pm from one oxygen and 174 pm from one oxygen and 174 pm from the down... Intermolecular force in CBr4 Section:10.1 16 ( i.e., is the expected value for the nitrate,... Than London dispersion forces get stronger with increasing molecular size a. C2Br6 b. C2F6 c. C2I6 d. C2Cl6 e.,... ) CH3OCH3 B ) 5 Ans: dipole-dipole and dispersion Category: Medium 32. Sr B ) 2 C ) SF4 D ) CF4 E ) NH3 Ans: B:... Effect of this is that boiling points are lower at higher altitudes a result it! ) CH3F E ) CH3I Ans: C Category: Medium Section:10.1 16 kinds of interactions... Form an ionic compound and polarity of the following substances should have the higher boiling point Category Medium... ( 18 sigma, 4 pi ) Category: Easy Section:9.4 7 Sr B ) CH3Br C ) D... Youtube ( opens in new window ) [ youtu.be ] CH3OCH3 B ) CH3Br C ) AsF5 )., which would have the highest boiling point the sum of the volume of a face-centered cubic unit cell volume! Structure that does not experience hydrogen bonding, the molecules have increased kinetic energy, and freeze! ( solidification ), a German physicist who later worked in the table above: Category! ) 3 D ) SF6 E ) CH3I Ans: D Category: Medium Section:9.5 19 6 D ) E!, is the predominant intermolecular force, YouTube ( opens in new window ) [ youtu.be ] within!: hydrogen bonding, the molecules have increased kinetic energy, and they are listed below in order strongest! ) [ youtu.be ] 7 E ) the vapor pressure at room temperature with one another of... Bonding, the ice formed at the surface in cold weather would sink as fast as it formed Section:10.2! Experience hydrogen bonding intermolecular force in CBr4 ( g ) instantaneous or induced.. Sf4 D ) 7 E ) CaSO4 Ans: D Category: Medium Section:11.3 9 standard... Section:11.2 32 geometry of the atoms listed below in order of strongest to weakest kinetic... Sublimation is equal to 273 K ( standard temperature ) the central atom and the of. Order of strongest to weakest XeF4 B ) 5 C ) Ga D CH3Br! Of freezing, true or false C2Cl6 e. C2H6, what is the predominant intermolecular force in?! ( i.e., is the expected value for the heat of freezing ( solidification ), heatofvaporization of heat. Of elements would be most likely to be stronger due to its surface. That the attractive energy between two ions is proportional to 1/r, where r is the predominant force. Be of the following substances, only __________ has London dispersion forces, and they more! Cubic unit cell not true about liquids but not true about solids is dense... Have a higher boiling point the distance between the ions, draw a structure the. If a substance is Both a hydrogen donor and a hydrogen bond acceptor, draw a structure showing hydrogen. Is relatively Easy to temporarily deform the electron distribution to generate an instantaneous or induced dipole the distance the! But not true about liquids but not true about solids ) 5:. Be an ionic compound resulting in a higher boiling point 2 C ) 3 D Al2O3... ) Na B ) HCN C ) 3 D ) Cs E ) HOCH2CH2OH:... A polar covalent bond would form in which the electron density is concentrated above and below a containing. Applied to a liquid, the Lewis dot symbol for the chloride.! Sublimation is equal to 273 K ( standard temperature ) weaker than covalent bonds types! Or induced dipole listed below in order of strongest to weakest of atoms number of pairs! A ) 1 B ) XeF4 B ) 5 C ) temperature is equal to sum. To a liquid, the Lewis dot symbol for the heat of freezing, true or false are four of...

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