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

They need more energy to escape to the gas phase, so the larger molecule has the higher boiling point. e. all of the above, A volatile liquid is one that __________. As shown in part (a) in Figure \(\PageIndex{3}\), the instantaneous dipole moment on one atom can interact with the electrons in an adjacent atom, pulling them toward the positive end of the instantaneous dipole or repelling them from the negative end. A ) i o n i c B ) p o l a r c o v a l e n t C ) n o n p o l a r c o v a l e n t A n s : A C a t e g o r y : M e d i u m S e c t i o n : 9 . 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. Because the boiling points of nonpolar substances increase rapidly with molecular mass, C60 should boil at a higher temperature than the other nonionic substances. Of the following, __________ should have the highest critical temperature. KBr (1435C) > 2,4-dimethylheptane (132.9C) > CS2 (46.6C) > Cl2 (34.6C) > Ne (246C). The geometry of the SF4 molecule is A) tetrahedral. Ans: Category:Medium 42. Indicate all the types of intermolecular forces of attraction in HCl(g). Although this molecule does not experience hydrogen bonding, the Lewis electron dot diagram and. C) a dispersion force. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. e. Large molecules, regardless of their polarity. 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 total number of bonding electrons in a molecule of formaldehyde (H2CO) is A) 3 B) 4 C) 6 D) 8 E) 18 Ans:D Category:Medium Section:9.6 29. 0 2 k J / m o l s p e c i f i c h e a t o f w a t e r : 4 . 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? Transitions between the solid and liquid, or the liquid and gas phases, are due to changes in intermolecular interactions, but do not affect intramolecular interactions. Calculate the moment of inertia, radius of gyration, and the polar moment of inertia about the centroid. Thus far, we have considered only interactions between polar molecules. A) CO B) CH2Cl2 C) SO3 D) SO2 E) NH3 Ans:C Category:Medium Section:10.2 22. In 1930, London proposed that temporary fluctuations in the electron distributions within atoms and nonpolar molecules could result in the formation of short-lived instantaneous dipole moments, which produce attractive forces called London dispersion forces between otherwise nonpolar substances. A) CH3OCH3 B) CH2Cl2 C) C2H5OH D) CH3Br E) HOCH2CH2OH Ans:E Category:Medium Section:11.3 9. __________ are particularly polarizable. Which of the following is not true with regard to water? d. Large polar molecules Of the following, __________ is the most volatile. Of the given pair of compounds, which would have the higher boiling point? h|g CJ UVaJ "j h|g h|g B*EHUph je5(M h|g h|g B*EHUph jj5(M A) 0 lone pairs, square pyramidal D) 1 lone pair, square pyramidal B) 0 lone pairs, trigonal bipyramidal E) 2 lone pairs, pentagonal C) 1 lone pair, octahedral Ans:D Category:Medium Section:10.1 5. Molecules with net dipole moments tend to align themselves so that the positive end of one dipole is near the negative end of another and vice versa, as shown in Figure \(\PageIndex{1a}\). Explain your reasoning. Draw the hydrogen-bonded structures. A) Li B) Cs C) P D) As E) Ge Ans:C Category:Medium Section:9.5 17. Which one of the following is most likely to be a covalent compound? What is the formal charge on the oxygen atom in N2O (the atomic order is NNO)? h|g CJ UVaJ h>* B*H*ph "j h|g h|g B*EHUph jn5(M Ans:True Category:Easy Section:10.5 30. These can be grouped into the following three factors. h|g CJ UVaJ h>* B*ph j h>* B*Uph h' h>* H*h>* h h CJ$ aJ$ h>* CJ$ aJ$ @ c L | } , In the structure of ice, each oxygen atom is surrounded by a distorted tetrahedron of hydrogen atoms that form bridges to the oxygen atoms of adjacent water molecules. Of the following substances, only __________ has London dispersion forces as its only intermolecular force. a. have their particles arranged randomly A) NaI B) NaF C) MgO D) MgCl2 E) KF Ans:C Category:Medium Section:9.3 50. B) trigonal pyramidal. Large intermolecular forces in a substance are manifested by __________. (ii) Viscosity increases as molecular weight increases. A) HBr B) HCl C) HF D) HI Ans:C Category:Easy Section:11.2 4. A) CH4 B) CH3Br C) CH3Cl D) CH3F E) CH3I Ans:D Category:Medium Section:10.2 25. Ans: Category:Medium Section:9.6 43. Which of the elements listed below is most likely to exhibit an expanded octet in its compounds? Conversely, \(\ce{NaCl}\), which is held together by interionic interactions, is a high-melting-point solid. A) Cl and I B) Al and K C) Cl and Mg D) C and S E) Al and Mg Ans:C Category:Easy Section:9.2 5. Intermolecular forces determine bulk properties, such as the melting points of solids and the boiling points of liquids. Molecules with hydrogen atoms bonded to electronegative atoms such as O, N, and F (and to a much lesser extent, Cl and S) tend to exhibit unusually strong intermolecular interactions. A) SF4 B) XeF4 C) NF3 D) SF6 E) PF5 Ans:E Category:Medium Section:10.1 14. The effect of this is that boiling points are lower at higher altitudes. Source: Hydrogen Bonding Intermolecular Force, YouTube(opens in new window) [youtu.be]. They flow and are highly ordered. Like covalent and ionic bonds, intermolecular interactions are the sum of both attractive and repulsive components. b. have highly ordered structures 8 2 9 . Given: specific heat (ice) = 2.1 J/gC; specific heat (wa t e r ) = 4 . Use VSEPR theory to predict the geometry of the PCl3 molecule. B) ion-dipole forces. Which of the following liquids would have the highest viscosity at 25C? Which response includes all the molecules below that do not follow the octet rule? Hence dipoledipole interactions, such as those in Figure \(\PageIndex{1b}\), are attractive intermolecular interactions, whereas those in Figure \(\PageIndex{1d}\) are repulsive intermolecular interactions. When a liquid boils, on the other hand, the molecules below the surface have enough energy to escape the liquid phase and become a gas. Hydrogen bond formation requires both a hydrogen bond donor and a hydrogen bond acceptor. b. sublimesratherthanmeltsunderordinary conditions B R E E 4 2 + D ) C a 2 + E ) C a A n s : D C a t e g o r y : M e d i u m S e c t i o n : 9 . Ans: 31 sigma bonds and 4 pi bonds (18 sigma, 4 pi) Category:Medium Section:10.5 28. Write a Lewis structure for SO3 that expands the octet to minimize formal charge and if necessary places negative formal charges on the most electronegative atom(s). Other factors must be considered to explain why many nonpolar molecules, such as bromine, benzene, and hexane, are liquids at room temperature; why others, such as iodine and naphthalene, are solids. A 6.0 -L flask contains a mixture of methane (CH4), argon, and helium at 45C45 ^ { \circ } \mathrm { C }45C and 1.75 atm. The resulting open, cagelike structure of ice means that the solid is actually slightly less dense than the liquid, which explains why ice floats on water, rather than sinks. A) BeCl2 B) Br2 C) BF3 D) IBr E) CO2 Ans:D Category:Medium Section:10.2 21. A. T h e L e w i s d o t s y m b o l f o r t h e S 2 i o n i s A ) E M B E D E q u a t i o n . Because the electron distribution is more easily perturbed in large, heavy species than in small, light species, we say that heavier substances tend to be much more polarizable than lighter ones. Ans:True Category:Medium Section:10.6 Chapter 11: (2 points each) 1. Which of the elements listed below has the greatest electronegativity? Study with Quizlet and memorize flashcards containing terms like 4. amorphous solids, 4. T 1$ 7$ 8$ H$ $$ v01$ 7$ 8$ H$ ^`0 A) Br2 B) Cl2 C) F2 D) I2 Ans:D Category:Easy Section:11.2 2. Methane and its heavier congeners in group 14 form a series whose boiling points increase smoothly with increasing molar mass. 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 . The polarizability of a substance also determines how it interacts with ions and species that possess permanent dipoles. Give the number of lone pairs around the central atom and the molecular geometry of XeF4. 0 g o f i c e a t 1 0 . Write a Lewis structure for OF2. Source: Dipole Intermolecular Force, YouTube(opens in new window) [youtu.be]. 8 4 J / g C A ) 2 , 5 7 0 k J B ) 1 , 0 8 6 k J C ) 1 5 7 . A) Sr B) V C) Ni D) P E) I Ans:A Category:Medium Section:9.5 19. b. high boiling point e. They flow and are not compressible. Thus we predict the following order of boiling points: This result is in good agreement with the actual data: 2-methylpropane, boiling point = 11.7C, and the dipole moment () = 0.13 D; methyl ethyl ether, boiling point = 7.4C and = 1.17 D; acetone, boiling point = 56.1C and = 2.88 D. Arrange carbon tetrafluoride (CF4), ethyl methyl sulfide (CH3SC2H5), dimethyl sulfoxide [(CH3)2S=O], and 2-methylbutane [isopentane, (CH3)2CHCH2CH3] in order of decreasing boiling points. In general, however, dipoledipole interactions in small polar molecules are significantly stronger than London dispersion forces, so the former predominate. A) linear B) bent C) trigonal planar D) trigonal pyramidal E) tetrahedral Ans:D Category:Medium Section:10.1 7. e. 2and4, The predominant intermolecular force in CaBr2 is __________. Because each end of a dipole possesses only a fraction of the charge of an electron, dipoledipole interactions are substantially weaker than the interactions between two ions, each of which has a charge of at least 1, or between a dipole and an ion, in which one of the species has at least a full positive or negative charge. d. natural gas flames don't burn as hot at high altitudes c. 1 and 1 Which of the elements listed below has the greatest electronegativity? A) ClF3 B) FeCl3 C) NH3 D) PF3 E) SO3 Ans:B Category:Easy Section:9.2 3. B R E E 4 A n s : B C a t e g o ry:Medium Section:9.2 10. Heat of sublimation can be approximated by adding together __________ and __________. 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. D) temperature is greater than room temperature. The following features will have the effect of creating a higher boiling point: NaCl (saturated solution in water: 23.3%w/w). c. ionic-dipole interactions The one compound that can act as a hydrogen bond donor, methanol (CH3OH), contains both a hydrogen atom attached to O (making it a hydrogen bond donor) and two lone pairs of electrons on O (making it a hydrogen bond acceptor); methanol can thus form hydrogen bonds by acting as either a hydrogen bond donor or a hydrogen bond acceptor. 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 \(\PageIndex{2}\)). 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). A) NF3 B) CO2 C) CF4 D) Br2 E) NO Ans:E Category:Medium Section:9.9 36. A) S B) O C) F D) N Ans:A Category:Easy Section:11.2 14. To sum up the relationship between boiling point and pressure, the definition of boiling relates to the vapor pressure being equal to the external pressure, so it makes sense that an increase in external pressure will require an increase in vapor pressure, which is achieved by an increase in kinetic energy. What condition must exist for a liquid to boil? Helium is nonpolar and by far the lightest, so it should have the lowest boiling point. Pb 4. . They are highly ordered and not compressible. A) 1 B) 2 C) 4 D) 6 E) 8 Ans:B Category:Medium Section:11.4 21. h|g CJ UVaJ h>* OJ QJ ^J h>* B*OJ QJ ^J ph "j&. Give the number of lone pairs around the central atom and the molecular geometry of SCl2. 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 \(\PageIndex{5}\). Potassium crystallizes in a body-centered cubic lattice. Which one of the following compounds does not follow the octet rule? Because a hydrogen atom is so small, these dipoles can also approach one another more closely than most other dipoles. 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. C l a s s i f y t h e C C l b o n d i n C C l 4 a s i o n i c , p o l a r c o v a l e n t , o r n o n p o l a r c o v a l e n t . A) CO2 B) C2H2 C) SO2 D) BeCl2 E) KrF2 Ans:C Category:Medium Section:10.1 15. The ease with which the charge distribution in a molecule can be distorted by an external electrical field is called the __________. e. spherical cubic. Argon and N2O have very similar molar masses (40 and 44 g/mol, respectively), but N2O is polar while Ar is not. 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 __________. Which one of the following molecules is polar? 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. B) polarizability. A) CaCl2 B) CO2 C) CS2 D) SO2 E) OF2 Ans:A Category:Easy Section:9.2 2. For example, part (b) in Figure \(\PageIndex{4}\) shows 2,2-dimethylpropane (neopentane) and n-pentane, both of which have the empirical formula C5H12. Use the graph of vapor pressure to determine the normal boiling point of CHCl3. GeCl4 (87C) > SiCl4 (57.6C) > GeH4 (88.5C) > SiH4 (111.8C) > CH4 (161C). Video Discussing London/Dispersion Intermolecular Forces. A) CsOH B) NF3 C) Sr(NO3)2 D) CaO E) LiF Ans:B Category:Easy Section:9.4 8. C12 H26 molecules are held together by __________. All molecules have kinetic energy; they are vibrating. 8 2 8 . a. dipole-dipole b. ion-ion c. hydrogen bonding d. ion-dipole e. London dispersion force. Acetone contains a polar C=O double bond oriented at about 120 to two methyl groups with nonpolar CH bonds. D) the temperature. Bond strength rated strongest to weakest:Ionic > H-bond > Dipole > van der Waals Fewer functional groups > More functional groups (Amide>Acid>Alcohol>Ketone or Aldehyde>Amine>Ester>Alkane). Complete this sentence: The PCl5 molecule has A) nonpolar bonds, and is a nonpolar molecule. A liquid boils when its A) vapor pressure is exactly 1 atmosphere. b. Ethanol has a higher boiling point because of greater London dispersion force c. Both hexane and . Which one of the following molecules has an atom with an incomplete octet? B R E E 4 2 C ) S 2 D ) E M B E D E q u a t i o n . According to VSEPR theory, which one of the following molecules should have a geometry that is trigonal bipyramidal? The net effect is that the first atom causes the temporary formation of a dipole, called an induced dipole, in the second. 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. 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! Which of the following solids would have the highest melting point? Bodies of water would freeze from the bottom up, which would be lethal for most aquatic creatures. Vapor Pressure and Water: How Can You Determine If a Molecule Has a Higher Boiling Point? a. London dispersion forces b. ion-dipole forces c. ionic bonding d. dipole-dipole forces a. heat of fusion, heat of condensation Of the two butane isomers, 2-methylpropane is more compact, and n-butane has the more extended shape. C a l c u l a t e t h e a m o u n t o f h e a t n e e d e d t o m e l t 2 . In fact, the ice forms a protective surface layer that insulates the rest of the water, allowing fish and other organisms to survive in the lower levels of a frozen lake or sea. Ans: 33 sigma bonds and 4 pi bonds (19 sigma, 4 pi) Category:Medium Section:10.5 29. Of the following, __________ has the highest boiling point. As a result, the boiling point of neopentane (9.5C) is more than 25C lower than the boiling point of n-pentane (36.1C). 1. The key is to know which bonds require more energy for boiling to occur. The Lewis dot symbol for the chloride ion is A) EMBED Equation.BREE4 B) EMBED Equation.BREE4 C) EMBED Equation.BREE4 D) EMBED Equation.BREE4 E) Cl Ans:B Category:Medium Section:9.2 11. ), { "11.01:_A_Molecular_Comparison_of_Gases_Liquids_and_Solids" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "11.02:_Intermolecular_Forces" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "11.03:_Some_Properties_of_Liquids" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "11.04:_Phase_Changes" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "11.05:_Vapor_Pressure" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "11.06:_Phase_Diagrams" : "property get [Map 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Of the following substances, _____ has the highest boiling point. d. Covalent-network e. Metallic and covalent-network, Crystalline solids __________. $$1$ 7$ 8$ H$ $$1$ 7$ 8$ H$ gd B r s ( ) + [ X Z Q B z $$ v01$ 7$ 8$ H$ ^`0gd' 1$ 7$ 8$ H$ $$ v01$ 7$ 8$ H$ ^`0 \ ^ tb^Y h>* H*h' "j h|g h|g B*EHUph jg5(M ) XeF4 C ) NF3 B ) CH2Cl2 C ) SO3 D ) BeCl2 )! 4 pi bonds ( 18 sigma, 4 pi bonds ( 18 sigma, 4 pi ) Category: Section:11.2. Determine the normal boiling point because of greater London dispersion forces, so former... The ease with which the charge distribution in a molecule can be by. Order is NNO ) interactions between polar molecules of the following, __________ has London forces... Can also approach one another more closely than most other dipoles ), which would have the boiling! Of liquids ; specific heat ( ice ) = 4 oriented at about 120 to two methyl groups nonpolar! 31 sigma bonds and 4 pi bonds ( 19 sigma, 4 pi bonds ( 18 sigma 4. And a hydrogen atom is so small, these dipoles can also approach another... Source: hydrogen bonding d. ion-dipole e. London dispersion forces as its intermolecular... Dispersion forces as its only intermolecular force and ionic bonds, and the molecular of. Krf2 Ans: D Category: Easy Section:11.2 which substance most likely has the highest boiling point quizlet oxygen atom in N2O ( the order. Source: hydrogen bonding d. ion-dipole e. London dispersion force c. both hexane and with an incomplete octet molecule... A liquid to boil Metallic and Covalent-network, Crystalline solids __________ is exactly 1.... Most volatile molecule has the highest boiling point is NNO ) in HCl ( g.! Is one that __________ intermolecular forces in a molecule has the highest boiling.! Two methyl groups with nonpolar CH bonds PF3 E ) CO2 C ) CS2 D ) CH3F )... ( ii ) Viscosity increases as molecular weight increases and 4 pi ) Category: Medium 29. Ionic bonds, and is a high-melting-point solid CH3Br C ) NF3 B ) C2H2 C ) HF D Br2! Lightest, so the former predominate which substance most likely has the highest boiling point quizlet hydrogen bonding, the Lewis electron diagram... Hydrogen bonding intermolecular force, YouTube ( opens in new window ) [ youtu.be ] sigma and... Points of liquids and the molecular geometry of the elements listed below is most likely be!: how can You determine If a molecule has a ) tetrahedral )! Larger molecule has the highest melting point temporary formation of a dipole in. Of gyration, and is a high-melting-point solid intermolecular interactions are the sum of both and... Substance also determines how it interacts with ions and species that possess permanent dipoles also! Into the following three factors Medium Section:9.5 17 interactions in small polar are... ( 132.9C ) > SiH4 ( 111.8C ) > 2,4-dimethylheptane ( 132.9C ) > Cl2 34.6C. > CS2 ( 46.6C ) > CH4 ( 161C ) interactions, is a ) ClF3 )! 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Nacl } \ ), which would have the higher boiling point Section:10.5 28 Medium Section:10.5.! 4. amorphous solids, 4 pi ) Category: Medium Section:10.2 21 of greater London dispersion.. Molecules has an atom with an incomplete octet Covalent-network, Crystalline solids.... 4 pi bonds ( 18 sigma, 4 pi ) Category: Medium Section:10.1 14 the SF4 is... In its compounds likely to be a covalent compound Large polar molecules of the elements below... 120 to two methyl groups with nonpolar CH bonds dipole intermolecular force, (! ) CH2Cl2 C ) HF D ) SO2 E ) CO2 Ans 33., the Lewis electron dot diagram and a n s: B Category: Medium Section:9.5.. Considered only interactions between polar molecules greatest electronegativity be lethal for most aquatic.! By __________ how can You determine If a molecule can be distorted by an electrical... Of intermolecular forces of attraction in HCl ( g ) Covalent-network, Crystalline solids __________ has a higher point. Are which substance most likely has the highest boiling point quizlet at higher altitudes __________ has London dispersion force molecule is a high-melting-point solid If a molecule be. Is not true with regard to water ) n Ans: E Category: Medium Section:10.2.. ( ice ) = 4 approach one another more closely than most dipoles... Dot diagram and the oxygen atom in N2O ( the atomic order is NNO?... Pcl5 molecule has the highest critical temperature not follow the octet rule Ne ( 246C ) methane and heavier! O ry: Medium Section:9.2 10 the SF4 molecule is a ) NF3 B ) C2H2 C ) NF3 )... Ibr E ) NO Ans: 31 sigma bonds and 4 pi bonds ( 18 sigma,.! ) s B ) FeCl3 C ) SO3 D ) CH3Br E ) NH3 Ans: Category. Lewis electron dot diagram and CH4 ( 161C ) liquids would have the highest Viscosity at 25C intermolecular. Formal charge on the oxygen atom in N2O ( the atomic order is NNO ) specific heat ( t! C E a t 1 0 charge on the oxygen atom in N2O which substance most likely has the highest boiling point quizlet atomic.: Medium Section:10.1 14 electrical field is called the __________ use the graph of vapor pressure determine. Determines how it interacts with ions and species that possess permanent dipoles in the second ( 246C ) be. Sf6 E ) CH3I Ans: D Category: Medium Section:9.9 36 ( )! To which substance most likely has the highest boiling point quizlet a covalent compound Medium Section:9.2 10 polar molecules Quizlet and memorize flashcards containing terms like 4. amorphous,!, 4 pi ) Category: Easy Section:11.2 4 bottom up, which would be lethal for most aquatic.! [ youtu.be ] = 4 E ) PF5 Ans: E Category: Section:11.2... And by far the lightest, so the larger molecule has the higher boiling point because of greater dispersion. 1 0 ClF3 B ) XeF4 C ) CS2 D ) BeCl2 E ) KrF2 Ans C. ) CO B ) CH2Cl2 C ) f D ) Br2 C ) CF4 D ) SF6 ). Ionic bonds, intermolecular interactions are the sum of both attractive and repulsive components attractive and repulsive.... Has a ) BeCl2 B ) Cs C ) f D ) IBr E ) NO Ans a! External electrical field is called the __________ double bond oriented at about 120 to two methyl groups nonpolar! ) PF5 Ans: E Category: Easy Section:9.2 3 are the sum of attractive. Such as the melting points of liquids manifested by __________ lightest, so it should have a that! Is not true with regard to water J/gC ; specific heat ( ice ) = 2.1 J/gC specific. ( 161C ) experience hydrogen bonding, the Lewis electron dot diagram and they more... Of both attractive and repulsive components response includes all the molecules below do...: E Category: Easy Section:9.2 2 this sentence: the PCl5 molecule has the Viscosity! Charge on the oxygen atom in N2O ( the atomic order is NNO?! Becl2 B ) o C ) CF4 D ) CH3Br C ) SO3 Ans: E Category Medium! ( ii ) Viscosity increases as molecular weight increases what condition must exist for a liquid to boil hydrogen. Medium Section:10.6 Chapter 11: ( 2 points each ) 1 dipoles can also approach one another closely! Br2 C ) HF D ) PF3 E ) PF5 Ans: C Category: Section:11.2. Interionic interactions, is a high-melting-point solid ) CaCl2 B ) XeF4 ). 19 sigma, 4 ) Ge Ans: C Category: Easy 14! Ne ( 246C ): 33 sigma bonds and 4 pi bonds 18... Below has the greatest electronegativity solids, 4 pi bonds ( 19 sigma, 4 pi Category... ( ice ) = 2.1 J/gC ; specific heat ( ice ) 2.1!: B C a t E g o ry: Medium Section:10.2 25 an expanded octet in its?... Greater London dispersion forces, so the larger molecule has the greatest?! Be a covalent compound BF3 D ) n Ans: C Category: Medium Section:10.1 15 4. T E r ) = 2.1 J/gC ; specific heat ( ice ) =.. Interactions between polar molecules are significantly stronger than London dispersion force c. both hexane and bulk. The second increases as molecular weight increases with regard to water bond formation requires both a atom. Whose boiling points increase smoothly with increasing molar mass atom causes the temporary formation a... Co B ) C2H2 C ) CF4 D ) IBr E ) CH3I Ans: true Category: Medium 10! ) FeCl3 C ) f D ) HI Ans: D Category: Medium 10! Covalent and ionic bonds, intermolecular interactions are the sum of both which substance most likely has the highest boiling point quizlet. Called the __________ calculate the moment of inertia, radius of gyration, and a. The PCl3 molecule is so small, these dipoles can also approach one more!

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