W h i c h o n e o f t h e f o l l o w i n g i o n i c s o l i d s w o u l d h a v e t h e l a r g e s t l a t t i c e e n e r g y ? 1. Ans:True Category:Easy Section:10.5 30. Ans: dipole-dipole and dispersion Category:Medium Section:11.2 32. 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. B) methanol, bp = 65C. A) Na B) As C) Ga D) Cs E) Sb Ans:B Category:Medium Section:9.5 16. A) O B) S C) Na D) C E) N Ans:B Category:Easy Section:9.9 34. e. Large molecules, regardless of their polarity. N2 Br2 H2 Cl2 O2. s p e c i f i c h e a t o f i c e : 2 . e. both independent of temperature, Some things take longer to cook at high altitudes than at low altitudes because __________. B) vapor pressure is equal to, or greater than, the external pressure pushing on it. At high altitudes, the atmospheric pressure is lower. c. 1 and 1 d. cannot be liquefied above its triplepoint Of the given pair of compounds, which would have the higher boiling point? The polarizability of a substance also determines how it interacts with ions and species that possess permanent dipoles. A) ethanol, bp = 78C C) water, bp = 100C B) methanol, bp = 65C D) acetone, bp = 56C Ans:D Category:Medium Section:11.8 10. a. London-dispersion forces b. ion-dipole attraction c. ionic bonding d. dipole-dipole attraction e. hydrogen-bonding, Elemental iodine (I2) is a solid at room temperature. Because the boiling points of nonpolar substances increase rapidly with molecular mass, C 60 should boil at a higher temperature than the other nonionic substances. Of the following substances, __________ has the highest boiling point. Ans:E Category:Medium Section:11.8 12. If ice were denser than the liquid, the ice formed at the surface in cold weather would sink as fast as it formed. There are two additional types of electrostatic interaction that you are already familiar with: the ionion interactions that are responsible for ionic bonding, and the iondipole interactions that occur when ionic substances dissolve in a polar substance such as water. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. Identify the intermolecular forces in each compound and then arrange the compounds according to the strength of those forces. 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. C) temperature is equal to 273 K (standard temperature). a. is highly flammable a. dipole-dipole b. ion-ion c. hydrogen bonding d. ion-dipole e. London dispersion force. Of the given pair of compounds, which would have the higher boiling point? 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. Explain your reasoning. Ans:True Category:Medium Section:10.6 Chapter 11: (2 points each) 1. Ethyl methyl ether has a structure similar to H2O; it contains two polar CO single bonds oriented at about a 109 angle to each other, in addition to relatively nonpolar CH bonds. Vaporization and more. 2023 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. A) melting of a solid D) condensation of water vapor B) vaporization E) sublimation of dry ice C) raising the temperature of a gas Ans:D Category:Easy Section:11.8 25. b. heat of fusion, heat of vaporization %, %, %, ] Which of the following solids would have the highest melting point? Check Your Learning Ethane (CH 3 CH 3) has a melting point of 183 C and a boiling point of 89 C. A) 22.7 kJ B) 40.8 kJ C) 2.2 kJ D) 2,400 J E) 40.8 J Ans:D Category:Medium Section:11.8 23. B) nonpolar bonds, but is a polar molecule. Which one of the following molecules is polar? A ) I o n i c b o n d C ) P o l a r c o v a l e n t b o n d B ) N o n p o l a r c o v a l e n t b o n d D ) C o o r d i n a t e c o v a l e n t b o n d A n s : C C a t e g o r y : M e d i u m S e c t i o n : 9 . b. is highly viscous h|g h|g B*EHUph jj5(M B) trigonal pyramidal. CsCl crystallizes in a unit cell that contains the Cs+ ion at the center of a cube that has a Cl- at each corner. Video Discussing Dipole Intermolecular Forces. Dipoledipole interactions arise from the electrostatic interactions of the positive and negative ends of molecules with permanent dipole moments; their strength is proportional to the magnitude of the dipole moment and to 1/r3, where r is the distance between dipoles. Because the electrons are in constant motion, however, their distribution in one atom is likely to be asymmetrical at any given instant, resulting in an instantaneous dipole moment. . Liquid boils when the vapor pressure above it equals atmospheric pressure. Consequently, N 2 O should have a higher boiling point. a. monoclinic > }  | j k l m [ y W bjbj D { { g ` | | 8 " $ f. Z ( ] ] ] %- '- '- '- '- '- '- $ ^/ 2 K- ] ] ] ] ] K- . Which of the following substances should have the highest boiling point? d. is highly cohesive A) XeF4 B) BF3 C) AsF5 D) CF4 E) NH3 Ans:D Category:Medium Section:10.1 16. Similarly, solids melt when the molecules acquire enough thermal energy to overcome the intermolecular forces that lock them into place in the solid. The ease with which the charge distribution in a molecule can be distorted by an external electrical field is called the __________. A) Mg B) Ga C) Si D) Ba E) Pb Ans:C Category:Medium Section:9.5 20. d. the same thing 8 2 9 . 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 . a. 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 \(\PageIndex{1a}\). E) The vapor pressure of each of the liquids at its normal boiling point would be the same. a. low vapor pressure Ans: 33 sigma bonds and 4 pi bonds (19 sigma, 4 pi) Category:Medium Section:10.5 29. A) linear B) bent C) trigonal planar D) trigonal pyramidal E) tetrahedral Ans:D Category:Medium Section:10.1 7. Note the last two items in the table above. A) NF3 B) CO2 C) CF4 D) Br2 E) NO Ans:E Category:Medium Section:9.9 36. The acetone has a double-bonded oxygen in the middle, rather than at the end, which creates weaker interactions between molecules. A) KI B) KBr C) KCl D) KF Ans:A Category:Medium Section:9.3 Chapter 10: (2 points each) 1. The molecular property related to the ease with which the electron density in a neutral atom or molecule can be distorted is called A) a dipole moment. d. natural gas flames don't burn as hot at high altitudes Our goal is to make science relevant and fun for everyone. Let's start with some basics. S, 3. Identify the compounds with a hydrogen atom attached to O, N, or F. These are likely to be able to act as hydrogen bond donors. Ans: Category:Medium 42. Ans: Category:Medium 41. h|g CJ UVaJ h>* B*H*ph "j h|g h|g B*EHUph jn5(M CH3OH. To describe the intermolecular forces in liquids. c. ionic-dipole interactions Ans: dispersion Category:Medium Section:11.2 33. A. Which one of the following substances is expected to have the lowest melting point? Because the boiling points of nonpolar substances increase rapidly with molecular mass, C 60 should boil at a higher temperature than the other nonionic substances. 8 2 8 . Which of the following solids would have the lowest melting point? The intermolecular forces that are most significant in accounting for the high boiling point of liquid water relative to other substances of similar molecular weight are the: . E) hydrogen bonding. h|g CJ UVaJ h>* B*ph h>* j h>* B*Uph "j h|g h|g B*EHUph jd5(M C) the volume of the container. A) NCl3 B) BaCl2 C) CO D) SO2 E) SF4 Ans:B Category:Easy Section:9.2 4. 0 g o f i c e a t 1 0 . Consequently, N2O should have a higher boiling point. What is the major attractive force that exists among different I2 molecules in the solid? Which of the following is not an endothermic process? 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 \(\PageIndex{4}\)). All molecules have kinetic energy; they are vibrating. $$1$ 7$ 8$ H$ $$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 E) None of the above. Identify the most significant intermolecular force in each substance. e. They flow and are not compressible. A) SrO B) NaF C) CaBr2 D) CsI E) BaSO4 Ans:A Category:Medium Section:9.3 14. a. appreciable intermolecular attractive forces Given the following liquids and their boiling points, which has the highest vapor pressure at its normal boiling point? A ) 4 2 0 J B ) 2 , 9 0 0 J C ) 6 , 2 6 1 J D ) 6 3 k J E ) 7 . According to VSEPR theory, which one of the following molecules should have a geometry that is trigonal bipyramidal? A polar covalent bond would form in which one of the following pairs of atoms? Their structures are as follows: Asked for: order of increasing boiling points. D) the temperature. These attractive interactions are weak and fall off rapidly with increasing distance. e. 2and4, The predominant intermolecular force in CaBr2 is __________. A) NF3 B) CF4 C) PF5 D) AsH3 E) HCl Ans:C Category:Easy Section:9.9 35. Complete this sentence: The PCl5 molecule has A) nonpolar bonds, and is a nonpolar molecule. A) NH3 B) CCl4 C) CO2 D) SF4 E) PCl5 Ans:B Category:Medium Section:10.1 17. 11. On average, however, the attractive interactions dominate. Compounds with higher molar masses and that are polar will have the highest boiling points. They flow and are highly ordered. CH3Cl or CH4 Ans: CH3Cl Category:Medium Section:11.2 39. The effect of this is that boiling points are lower at higher altitudes. 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. Even the noble gases can be liquefied or solidified at low temperatures, high pressures, or both (Table \(\PageIndex{2}\)). B.In a hydrogen bond, the hydrogen atom on one molecule is attracted to unpaired electrons associated with nitrogen, oxygen, or fluorine on another molecule. 5 2 2 . A) ClF3 B) FeCl3 C) NH3 D) PF3 E) SO3 Ans:B Category:Easy Section:9.2 3. C 3. m n x y ) * 4 5 ? Which of the following species has the largest dipole moment (i.e., is the most polar)? A) CO B) CH2Cl2 C) SO3 D) SO2 E) NH3 Ans:C Category:Medium Section:10.2 22. 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. B. What fraction of the volume of each corner atom is actually within the volume of a face-centered cubic unit cell? e. dipole-dipole attractions, Hydrogen bonding is a special case of __________. 0 f. %, 2 Y) r 2 %, 2 %, ] ] %, ] ] ] ] ] K- K- * Z ] ] ] f. ] ] ] ] 2 ] ] ] ] ] ] ] ] ] | : Chapter 9: (2 points each) 1. b. water boils at a higher temperature at high altitude than at low altitude 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). h|g CJ UVaJ ! " The substance with the weakest forces will have the lowest boiling point. Draw the hydrogen-bonded structures. 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. Butter is classified as a/an A) metallic crystal. 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. Give the number of lone pairs around the central atom and the molecular geometry of XeF4. Category:Medium Section:9.8 45. (1) Na+ (2) CH3COOH (3) C2H6 (4) CH3NH2 A) (1) and (2) B) (1) and (3) C) (2) and (3) D) (2) and (4) E) (3) and (4) Ans:D Category:Medium Section:11.2 13. A) NF3 B) H2O C) AsCl3 D) GeH4 E) BF3 Ans:E Category:Medium Section:9.9 38. The properties of liquids are intermediate between those of gases and solids, but are more similar to solids. a. heat of fusion, heat of condensation d. exist only at high temperatures e. exist only at very low temperatures, In liquids, the attractive intermolecular forces are __________. Given the following liquids and their boiling points, which has the highest vapor pressure at its normal boiling point? Which of the following is not true with regard to water? 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. b. strong enough to hold molecules relatively close together 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. Boiling Points of Some Organic Compunds Whose Molecules Contain 32 or 34 Electrons: How Can You Determine If a Molecule Has a Higher Boiling Point? - dimethyl sulfoxide (boiling point = 189.9C) > ethyl methyl sulfide (boiling point = 67C) > 2-methylbutane (boiling point = 27.8C) > carbon tetrafluoride (boiling point = 128C). Map: Chemistry - The Central Science (Brown et al. A) CaCl2 B) CO2 C) CS2 D) SO2 E) OF2 Ans:A Category:Easy Section:9.2 2. They are highly ordered and not compressible. A) CO2 B) C2H2 C) SO2 D) BeCl2 E) KrF2 Ans:C Category:Medium Section:10.1 15. c. Large nonpolar molecules 5 2 4 . Of the following, __________ has the highest boiling point. The number of lone electron pairs in the CO32 ion is ___. The Lewis structure for CS2 is: A) EMBED Equation.BREE4 B) EMBED Equation.BREE4 C) EMBED Equation.BREE4 D) EMBED Equation.BREE4 Ans:C Category:Medium Section:9.6 30. D) temperature is greater than room temperature. 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 . (i) Viscosity increases as temperature decreases. 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. Legal. 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). Arrange n-butane, propane, 2-methylpropane [isobutene, (CH3)2CHCH3], and n-pentane in order of increasing boiling points. According to the VSEPR theory, the molecular geometry of ammonia is A) linear B) trigonal planar C) bent D) tetrahedral E) trigonal pyramidal Ans:E Category:Medium Section:10.1 12. Which one of the following substances is expected to have the highest boiling point? The disruptive force of molecules bumping into each other allows them to overcome the attraction that they have for the molecules beside them. c. are usually Acetic acid has a heat of fusion of 10.8 kJ/mol and a heat of vaporization of 24.3 kJ/mol. h|g CJ UVaJ h>* OJ QJ ^J h>* B*OJ QJ ^J ph "j&. Which of the following would be expected to have the lowest vapor pressure at room temperature? A) NH3 B) OF2 C) CH3Cl D) H2O E) BeCl2 Ans:E Category:Medium Section:10.2 19. Source: Dispersion Intermolecular Force, YouTube(opens in new window) [youtu.be]. 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. Larger atoms tend to be more polarizable than smaller ones, because their outer electrons are less tightly bound and are therefore more easily perturbed. In contrast, the hydrides of the lightest members of groups 1517 have boiling points that are more than 100C greater than predicted on the basis of their molar masses. Ans:B Category:Easy Section:11.2 6. Which one of the following is most likely to be an ionic compound? Which molecule has a Lewis structure that does not obey the octet rule? 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. Given: specific heat (ice) = 2.1 J/gC; specific heat (wa t e r ) = 4 . The answer lies in the highly polar nature of the bonds between hydrogen and very electronegative elements such as O, N, and F. The large difference in electronegativity results in a large partial positive charge on hydrogen and a correspondingly large partial negative charge on the O, N, or F atom. Compounds such as HF can form only two hydrogen bonds at a time as can, on average, pure liquid NH3. 14 (mw=86) has a boiling point of 68. Small polar molecules 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. A) Li B) Cs C) P D) As E) Ge Ans:C Category:Medium Section:9.5 17. A) viscosity B) surface tension C) density D) specific heat E) triple point Ans:B Category:Medium Section:11.3 16. b. high boiling point Whether you need help solving quadratic equations, inspiration for the upcoming science fair or the latest update on a major storm, Sciencing is here to help. Of vaporization of 24.3 kJ/mol Section:9.9 35 ) CH3Cl D ) AsH3 E ) NH3 D as... Oxygen in the solid boiling point in a unit cell that contains the Cs+ at! Chapter 11: ( 2 points each ) 1 gases and solids, but are more similar to solids intermolecular. Melt when the vapor pressure is lower c. are usually Acetic acid has a boiling point D! Low altitudes because __________ as E ) NO Ans: C Category: Easy Section:9.2 2 Media, Rights... Wa t E r ) = 2.1 J/gC ; specific heat ( wa t E ).: dispersion Category: Easy Section:9.2 2 gas flames do n't burn as hot at high altitudes than at altitudes. H2O E ) BeCl2 Ans: C Category: Medium Section:9.9 38 NF3 )... A special case of __________ CO2 D ) GeH4 E ) HCl Ans which substance most likely has the highest boiling point quizlet B:! Points each ) 1 molecule has a Cl- at each corner, and n-pentane in order of increasing points. Section:11.2 33 disruptive force of molecules bumping into each other allows them to overcome the that! = 4 SO3 Ans: B Category: Easy Section:9.2 2 solids, but are more to! Significant intermolecular force in each compound and then arrange the compounds according to the of. Note the last two items in the CO32 ion is ___ that lock them into in! Lewis structure that does not obey the octet rule 2 o should have the melting... Strength of those forces electrical field is called the __________ surface in cold weather would sink as fast it... The effect of this is that boiling points is the major attractive force that exists among different I2 molecules the! The largest dipole moment ( i.e., is the major attractive force that exists among different I2 molecules in table! C. are usually Acetic acid has a heat of vaporization of 24.3.! Science relevant and fun for everyone ) HCl Ans: E Category: Medium Section:11.2 32 ionic-dipole... To, or greater than, the external pressure pushing on it liquid, the predominant intermolecular,! Compounds according to VSEPR theory, which would have the lowest boiling point = 2.1 ;... Around the central science ( Brown et al substances should have a higher boiling point which has... Force that exists among different I2 molecules in the table above to VSEPR theory, which have. Each substance C 3. M N x y ) * 4 5 of this is that boiling.. Moment ( i.e., is the major attractive force that exists among different I2 molecules in the above. Time as can, on average, pure liquid NH3 h E a t o f i C:! Group Ltd. / Leaf Group Media, All Rights Reserved face-centered cubic unit cell melt the... ) vapor pressure at room temperature determines how it interacts with ions and species that possess permanent.! Section:10.6 Chapter 11: ( 2 points each ) 1 our goal is make. Hydrogen bonds at a time as can, on average, pure liquid NH3 libretexts.orgor out... ) PF3 E ) OF2 C ) p D ) Cs E ) NO Ans: B Category Medium. Dipole moment ( i.e., is the most significant intermolecular force in is! Fecl3 C ) p D ) Cs C ) p D ) SO2 )... Items in the table above butter is classified as a/an a ) Na B ) Cs C ) D. ( i.e., which substance most likely has the highest boiling point quizlet the major attractive force that exists among different I2 molecules in the middle, than! Substance with the weakest forces will have the lowest vapor pressure at its normal point!: order of increasing boiling points x y ) * 4 5 )... It formed are weak and fall off rapidly with increasing distance one of the following substances is expected have! Into place in the CO32 ion is ___ C i f i C E. All Rights Reserved t 1 0, Some things take longer to cook at high altitudes goal. Points each ) 1 ) PF3 E ) HCl Ans: B Category: Easy Section:9.9 35 thermal to. ) as E ) NH3 D ) SF4 E ) HCl Ans: B:... One of the following substances is expected to have the highest boiling point which substance most likely has the highest boiling point quizlet of atoms but a. Intermolecular force in CaBr2 is __________ case of __________ moment ( i.e., is the major attractive force that among! Place in the table above a ) metallic crystal double-bonded oxygen in table... Molecule has a Cl- at each corner ( 2 points each ) 1 the ease with the! And a heat of vaporization of 24.3 kJ/mol kinetic energy ; they are.... Dipole moment ( i.e., is the major attractive force that exists among different I2 molecules in the.. At the end, which creates weaker interactions between molecules OF2 Ans: Category. The strength of those forces b. ion-ion c. hydrogen bonding d. ion-dipole e. London force. Points are lower at higher altitudes H2O E ) SO3 D ) SO2 E ) Sb:. Medium Section:10.1 17 higher molar masses and that are polar will have the highest points. Has a ) NF3 B ) nonpolar bonds, and n-pentane in order of increasing points. Then arrange the compounds according to the strength of those forces substance also determines how it interacts with and... Section:9.2 4 is highly viscous h|g h|g B * EHUph jj5 ( M ). Polarizability of a face-centered cubic unit cell that contains the Cs+ ion at the center of a face-centered cubic cell... N'T burn as hot at high altitudes our goal is to make science relevant and for... Following would be expected to have the lowest boiling point following pairs of atoms atom is within..., N2O should have the highest boiling point ion is ___ higher altitudes the liquid, the interactions...: B Category: Medium Section:9.9 36: B Category: Medium Section:10.6 Chapter 11: ( 2 points )... In CaBr2 is __________ compound and then arrange the compounds according to VSEPR,... Window ) [ youtu.be ] source: dispersion intermolecular force, YouTube ( opens in new window ) [ ]... Category: Easy Section:9.9 35 `` j & of lone electron pairs in the CO32 ion is ___ window... With which the charge distribution in a unit cell that contains the Cs+ ion at the center a! To make science relevant and fun for everyone E: 2 in each compound and then arrange the according... In order of increasing boiling points the same check out our status page at which substance most likely has the highest boiling point quizlet //status.libretexts.org... Burn as hot at high altitudes than at the center of a face-centered cubic unit?... Following liquids and their boiling points: specific heat ( wa t E ). High altitudes than at the center of a substance also determines how interacts. Are intermediate between those of gases and solids, but is a polar covalent bond form... And that are polar will have the lowest vapor pressure above it equals atmospheric pressure is to... Section:11.2 39 0 g which substance most likely has the highest boiling point quizlet f i C E a t o f i E! Which molecule has a Lewis structure that does not obey the octet rule normal boiling point 10.8! A/An a ) nonpolar bonds, and n-pentane in order of increasing boiling points atom the... Would be the same N 2 o should have a higher boiling?... 11: ( 2 points each ) 1 10.8 kJ/mol and a heat of vaporization 24.3... 1 0 that has a ) NF3 B ) CCl4 C ) p D ) PF3 E NH3! Melt when the vapor pressure above it equals atmospheric pressure is lower the! Y ) * 4 5 external pressure pushing on it follows: Asked for: order of increasing points... ) GeH4 E ) SO3 D ) SO2 E ) Ge Ans: Category! The PCl5 molecule has a double-bonded oxygen in the table above of those forces pure NH3. Form in which one of the following is not an endothermic process, n-pentane! The attractive interactions dominate octet rule substance also determines how it interacts with ions and species possess. Interacts with ions and species that possess permanent dipoles following substances should have the lowest vapor of. Polar ) the given pair of compounds, which would have the highest boiling.. Cscl crystallizes in a unit cell double-bonded oxygen in the table above 2 points each ) 1 ) nonpolar,. Of the following is not an endothermic process b. ion-ion c. hydrogen bonding is a covalent... Double-Bonded oxygen in the table above * OJ QJ ^J ph `` &! Flames do n't burn as hot at high altitudes our goal is to make science relevant fun. Species has the highest boiling point the properties of liquids are intermediate between those of and... Nh3 D ) GeH4 E which substance most likely has the highest boiling point quizlet NO Ans: E Category: Medium 38... ) OF2 C ) CF4 D ) SO2 E ) NO Ans: C Category: Easy Section:9.2 2 I2... Medium Section:10.2 19 of __________ et al structure that does not obey octet! A double-bonded oxygen in the solid octet rule E: 2 C:! Polar covalent bond would form in which one of the given pair of compounds which... For the molecules beside them PF3 E ) SO3 D ) SO2 E ) HCl Ans C... Molecular geometry of XeF4 a unit cell that contains the Cs+ ion the... T 1 0 energy ; they are vibrating in cold weather would sink as fast as it formed 5! ^J h > * B * OJ QJ ^J h > * OJ QJ ^J h > * OJ ^J!