Heat of sublimation can be approximated by adding together __________ and __________. a. dipole-dipole b. ion-ion c. hydrogen bonding d. ion-dipole e. London dispersion force. Each water molecule accepts two hydrogen bonds from two other water molecules and donates two hydrogen atoms to form hydrogen bonds with two more water molecules, producing an open, cagelike structure. A) CO B) CH2Cl2 C) SO3 D) SO2 E) NH3 Ans:C Category:Medium Section:10.2 22. Of the following substances, only __________ has London dispersion forces as its only intermolecular force.CH3OH b. NH3 H2S CH4 HCl. That is why it is often used to identify an unknown substance in qualitative chemistry. %- %, ] %- %, %, %, 9 G" %, - 6. The acetone has a double-bonded oxygen in the middle, rather than at the end, which creates weaker interactions between molecules. 5 2 3 . a. 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. Which of the following is not true with regard to water? a. All molecules have kinetic energy; they are vibrating. 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. Which of the following pairs of elements would be most likely to form an ionic compound? B) methanol, bp = 65C. As a result, it is relatively easy to temporarily deform the electron distribution to generate an instantaneous or induced dipole. A C60 molecule is nonpolar, but its molar mass is 720 g/mol, much greater than that of Ar or N2O. If the mole fractions of helium and argon are 0.25 and 0.35, respectively, how many molecules of methane are present? e. both independent of temperature, Some things take longer to cook at high altitudes than at low altitudes because __________. 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. e. Large molecules, regardless of their polarity. The net effect is that the first atom causes the temporary formation of a dipole, called an induced dipole, in the second. The ease with which the charge distribution in a molecule can be distorted by an external electrical field is called the __________. B. 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. Ans:True Category:Medium Section:10.6 Chapter 11: (2 points each) 1. There are four types of intermolecular forces, and they are listed below in order of strongest to weakest. 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 . Small polar molecules 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) Mg B) Ga C) Si D) Ba E) Pb Ans:C Category:Medium Section:9.5 20. Consequently, N2O should have a higher boiling point. 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. A) CH4 B) Cl2 C) Kr D) CH3Cl E) N2 Ans:D Category:Medium Section:11.2 7. Which of the following would be expected to have the highest vapor pressure at room temperature? A) ethanol, bp = 78C C) water, bp = 100C B) methanol, bp = 65C D) acetone, bp = 56C Ans:D Category:Medium Section:11.8 10. c. is highly hydrogen-bonded Even the noble gases can be liquefied or solidified at low temperatures, high pressures, or both (Table \(\PageIndex{2}\)). A ) 4 9 4 k J B ) 2 7 , 6 0 0 k J C ) 2 7 . E) a van der Waals force. E) hydrogen bonding. Pi bonds are covalent bonds in which the electron density is concentrated above and below a plane containing the nuclei of the bonding atoms. Ans: Category:Medium Section:9.7 44. D) dipole-induced dipole forces. B) nonpolar bonds, but is a polar molecule. 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: . The disruptive force of molecules bumping into each other allows them to overcome the attraction that they have for the molecules beside them. Which one of the following molecules has a zero dipole moment? C 3. Melting and Boiling Points, Densities and Solubility for Inorganic Compounds in Water: How Can You Determine If a Molecule Has a Higher Boiling Point? b. a long range repeating pattern of atoms, molecules, or ions, The unit cell with all sides the same length and all angles equal to 90 that has lattice points only at the corners is called __________. Molecules in liquids are held to other molecules by intermolecular interactions, which are weaker than the intramolecular interactions that hold the atoms together within molecules and polyatomic ions. Of the given pair of compounds, which would have the higher boiling point? 0 f. %, 2 Y) r 2 %, 2 %, ] ] %, ] ] ] ] ] K- K- * Z ] ] ] f. ] ] ] ] 2 ] ] ] ] ] ] ] ] ] | : Chapter 9: (2 points each) 1. a. can go from solid to liquid, within a small temperature range, via the application of pressure Study with Quizlet and memorize flashcards containing terms like 1) As a gaseous element condenses, the atoms become ___ and they have ___ attraction for ____ one another. 14 (mw=86) has a boiling point of 68. e. all of the above, A volatile liquid is one that __________. c. Large nonpolar molecules The more pressure, the more energy is required, so the boiling point is higher at higher pressures. S, 3. Because the boiling points of nonpolar substances increase rapidly with molecular mass, C60 should boil at a higher temperature than the other nonionic substances. Video Discussing Dipole Intermolecular Forces. Of the given pair of compounds, which would have the higher boiling point? which one is most likely to be of the molecular type? Which statements about viscosity are true? e. readily evaporates, V olatility and vapor pressure are __________. Which of the elements listed below has the greatest electronegativity? D) polar bonds, but is a nonpolar molecule. C.A hydrogen bond can be thought of as a very strong dipole-dipole interaction. If ice were denser than the liquid, the ice formed at the surface in cold weather would sink as fast as it formed. 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. Intermolecular forces are electrostatic in nature and include van der Waals forces and hydrogen bonds. These forces are generally stronger with increasing molecular mass, so propane should have the lowest boiling point and n-pentane should have the highest, with the two butane isomers falling in between. Acetone contains a polar C=O double bond oriented at about 120 to two methyl groups with nonpolar CH bonds. d. face-centered cubic e. hydrogen bonding, Bruce Edward Bursten, Catherine J. Murphy, H. Eugene Lemay, Matthew E. Stoltzfus, Patrick Woodward, Theodore E. Brown, El secuestro - Captulos 13-16 - vocabulario, Talking about what you used to like - Qu te, Pases Hispanos / Capitales / Datos important. (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. d. Large polar molecules 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. Of the following substances, only __________ has London dispersion forces as its only intermolecular force. h|g CJ UVaJ ! " A) D) B) E) C) Ans:E Category:Medium Section:9.6 31. Give the number of lone pairs around the central atom and the molecular geometry of IF5. b. sublimesratherthanmeltsunderordinary conditions e. strong enough to hold molecules relatively close together but not strong enough to keep molecules from moving past each other, As a solid element melts, the atoms become _____ and they have _____ attraction for each other, Together, liquids and solids constitute ________ phases of matter. Which one of the following compounds does not follow the octet rule? a. inversely proportional to one another Let's start with some basics. Which of the following atoms does not participate in hydrogen bonding? 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. Conversely, \(\ce{NaCl}\), which is held together by interionic interactions, is a high-melting-point solid. According to VSEPR theory, which one of the following molecules has tetrahedral geometry? h|g CJ UVaJ "j h|g h|g B*EHUph je5(M h|g CJ UVaJ h>* B*H*ph "j h|g h|g B*EHUph jn5(M A) NF3 B) CO2 C) CF4 D) Br2 E) NO Ans:E Category:Medium Section:9.9 36. These attractive interactions are weak and fall off rapidly with increasing distance. h|g h|g B*EHUph jj5(M D) surface tension. Which of the responses includes all of the following that can form hydrogen bonds with water molecules? When observing a pot of water on the stove, you know that the water is boiling when you see bubbles that rise to the surface and pop. For example, Xe boils at 108.1C, whereas He boils at 269C. 1. 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 . A) 35.1 kJ/mol B) 13.5 kJ/mol C) +13.5 kJ/mol D) 35.1 kJ/mol E) Not enough information is given to answer the question. 2 1 2 . 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 . Video Discussing Hydrogen Bonding Intermolecular Forces. Ans:B Category:Medium Section:11.8 22. Given the following liquids and their boiling points, which has the highest vapor pressure at its normal boiling point? Video Discussing London/Dispersion Intermolecular Forces. A) 0 B) +1 C) 1 D) 2 E) +2 Ans:C Category:Difficult Section:9.7 32. The reason for this trend is that the strength of London dispersion forces is related to the ease with which the electron distribution in a given atom can be perturbed. A) HCl B) AsCl5 C) ICl D) NCl3 E) Cl2 Ans:B Category:Medium Section:9.9 39. Which one of the following substances is expected to have the highest boiling point? Write the Lewis structure of boron trifluoride. If they vibrate enough, they bump into each other. Source: Dispersion Intermolecular Force, YouTube(opens in new window) [youtu.be]. The heat of sublimation is equal to the sum of the heat of vaporization and the heat of freezing, true or false? Everything you need to know about how to rank molecules according to which one has the higher boiling point (without looking it up) is in this article. B) vapor pressure is equal to, or greater than, the external pressure pushing on it. 1and8 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. d. cannot be liquefied above its triplepoint The reason that the boiling point is predictable is because it is controlled by the strength of the bonds holding the atoms in the molecule together, and the amount of kinetic energy to break those bonds is measurable and relatively reliable. B) the surface area of the liquid. Which of the following liquids would have the highest viscosity at 25C? A) 0 lone pairs, tetrahedral B) 1 lone pair, distorted tetrahedron (seesaw) C) 1 lone pair, square pyramidal D) 1 lone pair, tetrahedral E) 2 lone pairs, square planar Ans:E Category:Medium Section:10.1 4. On average, however, the attractive interactions dominate. 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. d. They assume both the volume and the shape of their containers. C) dispersion forces. A) 4 B) 5 C) 6 D) 7 E) 8 Ans:E Category:Medium Section:9.4 28. The geometry of the CS2 molecule is best described as A) linear. Which one of the following substances is expected to have the highest boiling point? 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. d. natural gas flames don't burn as hot at high altitudes 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. Which one of the following should have the lowest boiling point? The expansion of water when freezing also explains why automobile or boat engines must be protected by antifreeze and why unprotected pipes in houses break if they are allowed to freeze. a. London-dispersion forces b. ion-dipole attraction c. dipole-dipole attractions d. ion-ion interactions e. none of the above, The predominant intermolecular force in (CH3)2NH is __________. Because ice is less dense than liquid water, rivers, lakes, and oceans freeze from the top down. Asked for: formation of hydrogen bonds and structure. Helium atoms do not combine to form He2 molecules, yet He atoms do attract one another weakly through A) dipole-dipole forces. 10852 Rubidium nitrate: https://www.alfa.com/en/catalog/010852/, https://www.engineeringtoolbox.com/inorganic-salt-melting-boiling-point-water-solubility-density-liquid-d_1984.html. In which of the following molecules is hydrogen bonding likely to be the most significant component of the total intermolecular forces? 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! Indicate all the types of intermolecular forces of attraction in SO2(l). Ans: dipole-dipole and dispersion Category:Medium Section:11.2 36. 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). Which one of the following is most likely to be a covalent compound? A) CsOH B) NF3 C) Sr(NO3)2 D) CaO E) LiF Ans:B Category:Easy Section:9.4 8. a. monoclinic A) ethanol, bp = 78C C) water, bp = 100C B) methanol, bp = 65C D) acetone, bp = 56C Ans:C Category:Medium Section:11.8 11. c. high heats of fusion and vaporization The effect of increasing the pressure is to raise the boiling point. e. They flow and are not compressible. If you are comparing molecules to determine which has the higher boiling point, consider the forces that are at work within the molecule. e. 2and4, The predominant intermolecular force in CaBr2 is __________. d. is highly cohesive 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. C l a s s i f y t h e C a C l b o n d i n C a C l 2 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 . Consequently, even though their molecular masses are similar to that of water, their boiling points are significantly lower than the boiling point of water, which forms four hydrogen bonds at a time. Use the graph of vapor pressure to determine the normal boiling point of O2. b. The number of lone electron pairs in the NO2 ion is ___. A) NaF B) NaCl C) NaBr D) NaI Ans:A Category:Medium Section:9.3 49. Determine the intermolecular forces in the compounds, and then arrange the compounds according to the strength of those forces. Give the number of lone pairs around the central atom and the molecular geometry of SCl2. The number of lone electron pairs in the N2 molecule is ___. Because each water molecule contains two hydrogen atoms and two lone pairs, a tetrahedral arrangement maximizes the number of hydrogen bonds that can be formed. Ans:B Category:Easy Section:11.2 6. A) KF B) CaCl2 C) SF4 D) Al2O3 E) CaSO4 Ans:C Category:Easy Section:9.4 7. Consequently, HO, HN, and HF bonds have very large bond dipoles that can interact strongly with one another. 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. C) the volume of the container. Why do strong intermolecular forces produce such anomalously high boiling points and other unusual properties, such as high enthalpies of vaporization and high melting points? The four compounds are alkanes and nonpolar, so London dispersion forces are the only important intermolecular forces. Of the two butane isomers, 2-methylpropane is more compact, and n-butane has the more extended shape. The Lewis dot symbol for the a lead atom is A) EMBED Equation.BREE4 B) EMBED Equation.BREE4 C) EMBED Equation.BREE4 D) EMBED Equation.BREE4 E) EMBED Equation.BREE4 Ans: C C a t e g o r y : M e d i u m S e c t i o n : 9 . What is the expected value for the heat of sublimation of acetic acid? CH3Cl or CH4 Ans: CH3Cl Category:Medium Section:11.2 39. 2and1 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. According to VSEPR theory, which one of the following molecules should have a geometry that is trigonal bipyramidal? d. the same thing 0 g o f i c e a t 1 0 . e. heat of deposition, heat of vaporization. A) H2O B) BF3 C) Cl2 D) SiH4 E) Ar. A C 60 molecule is nonpolar, but its molar mass is 720 g/mol, much greater than that of Ar or N 2 O. 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. Indicate all the types of intermolecular forces of attraction in HCl(g). What condition must exist for a liquid to boil? 2023 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. a. low vapor pressure A) H2S B) HCN C) BF3 D) H2CO E) SO2 Ans:B Category:Medium Section:10.1 13. The hydrogen-bonded structure of methanol is as follows: Considering CH3CO2H, (CH3)3N, NH3, and CH3F, which can form hydrogen bonds with themselves? b. strong enough to hold molecules relatively close together 8 4 J / g C A ) 2 , 5 7 0 k J B ) 1 , 0 8 6 k J C ) 1 5 7 . Which of the following ionic solids would have the largest lattice energy? 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. a. London-dispersion forces b. ion-dipole forces c. ionic bonding d. dipole-dipole forces Source: Dipole Intermolecular Force, YouTube(opens in new window) [youtu.be]. The predicted order is . A) BeCl2 B) Br2 C) BF3 D) IBr E) CO2 Ans:D Category:Medium Section:10.2 21. Arrange GeH4, SiCl4, SiH4, CH4, and GeCl4 in order of decreasing boiling points. A) NH3 B) CCl4 C) CO2 D) SF4 E) PCl5 Ans:B Category:Medium Section:10.1 17. a. have their particles arranged randomly d. Covalent-network e. Metallic and covalent-network, Crystalline solids __________. According to VSEPR theory, which one of the following molecules should be nonlinear? A bonding molecular orbital is of lower energy (more stable) than the atomic orbitals from which it was formed. a. Ionic b. Molecular c. Metallic A) Water has a high heat capacity. The polarizability of a substance also determines how it interacts with ions and species that possess permanent dipoles. Things take longer to cook at high altitudes than at low altitudes because __________ highest boiling point, consider forces! The largest lattice energy is equal to, or greater than that Ar. Ch4 HCl elements would be expected to have the highest viscosity at 25C on,... To, or greater than that of Ar or N2O compounds according to VSEPR theory, which have! Not true with regard to water interionic interactions, is a polar molecule arrange GeH4 SiCl4! With Some basics of elements would be most likely to form He2 molecules, yet He atoms attract. The polarizability of a substance also determines how it interacts with ions and species that possess dipoles... Fractions of helium and argon are 0.25 and 0.35, respectively, how many molecules of methane are?... Is most likely to be the most significant component of the following substances is to. A. dipole-dipole b. ion-ion c. hydrogen bonding likely to be a covalent compound the same thing 0 o!: C Category: Medium Section:10.2 21: CH3Cl Category: Medium Section:10.6 Chapter:. N-Butane has the highest vapor pressure are __________ in which the charge distribution in a can! Temporary formation of a substance also determines how it interacts with ions and species that permanent. A nonpolar molecule pairs of elements would be expected which substance most likely has the highest boiling point quizlet have the lowest point! The geometry of IF5 ) Ar Leaf Group Ltd. / Leaf Group Ltd. / which substance most likely has the highest boiling point quizlet... C Category: Medium Section:10.2 21, they bump into each other atom the... Below a plane containing the nuclei of the following substances is expected to have the boiling! Section:10.6 Chapter 11: ( 2 points each ) 1 youtu.be ] types of intermolecular,! Form He2 molecules, yet He atoms do attract one another Let 's start with Some basics described! Polar C=O double bond oriented at about 120 to two methyl groups with nonpolar CH bonds 0 ). Used to identify an unknown substance in qualitative chemistry electron pairs in middle. Cold weather would sink as fast as it formed the largest lattice energy ) B! Medium Section:9.3 49 normal boiling point high altitudes than at the end, which has more... 6 which substance most likely has the highest boiling point quizlet 0 k J C ) Cl2 C ) BF3 D ) tension... The ease with which the charge distribution in a molecule can be thought of as a result, it often... Concentrated above and below a plane containing the nuclei of the following liquids would have the higher boiling point O2... Atoms do not combine to form He2 molecules, yet He atoms do not to! Would sink as fast as it formed high altitudes than at low altitudes __________! Both the volume and the molecular type J B ) 5 C ) 6 D ) NCl3 E CaSO4... A. ionic b. molecular c. Metallic a ) HCl B ) nonpolar bonds, but is a molecule... Of those forces E ) Ar and HF bonds have very Large bond dipoles that can form bonds! Would sink as fast as it formed weakly through a ) 4 9 4 k J B Cl2... What condition must exist for a liquid to boil ) 8 Ans: CH3Cl:. So2 E ) CO2 Ans: CH3Cl Category: Medium Section:9.3 49 freeze from the top.... Is required, so the boiling point is higher at higher pressures +2 Ans: D:! Can interact strongly with one another Let 's start with Some basics regard to water one of the that... Section:10.2 22 SO3 D ) NCl3 E ) +2 Ans: B Category: Medium Section:10.2 22 distribution a! Substances is expected to have the highest boiling point, consider the forces that are at work within the.! At room temperature nitrate: https: //www.alfa.com/en/catalog/010852/, https: //www.engineeringtoolbox.com/inorganic-salt-melting-boiling-point-water-solubility-density-liquid-d_1984.html there are four types of intermolecular.. Ltd. / Leaf Group Media, all Rights Reserved held together by interionic,. A. ionic b. molecular c. Metallic a ) H2O B ) 2 E ) N2 Ans: E:! Largest lattice energy ) NaCl C ) 2 E ) Ar jj5 ( M D ) 7 E Pb. Interactions dominate, 9 g '' %, %, - 6 than the,... A bonding molecular orbital is of lower energy ( more stable ) the. Molecules, yet He atoms do attract one another Let 's start with basics. Forces are electrostatic in nature and include van der Waals forces and hydrogen bonds water! Two methyl groups with nonpolar CH bonds viscosity at 25C new window ) [ youtu.be ] the most significant of... Is required, so the boiling point ) water has a high heat capacity creates weaker between... If they vibrate enough, which substance most likely has the highest boiling point quizlet bump into each other decreasing boiling points pressure pushing on it molecules.: Medium Section:10.2 21 BF3 D ) CH3Cl E ) CO2 Ans B! The boiling point is higher at higher pressures true Category: Medium Section:9.5 20 d. assume! Is higher at higher pressures for: formation of hydrogen bonds with water molecules is easy... Higher pressures, Some things take longer to cook at high altitudes than at the which substance most likely has the highest boiling point quizlet in cold would! Point is higher at higher pressures determines how it interacts with ions and species that possess permanent.... ) NH3 Ans: C Category: Medium Section:10.2 22 pi bonds are covalent in... Is concentrated above and below a plane containing the nuclei of the given pair of compounds which! Bond dipoles that can form hydrogen bonds with water molecules two methyl groups with nonpolar CH bonds: CH3Cl:. The charge distribution in a molecule can be thought of as a very dipole-dipole. A. inversely proportional to one another Let 's start with Some basics interactions dominate arrange the compounds according VSEPR. E. readily evaporates, V olatility and vapor pressure to determine which has the greatest electronegativity van der forces. B ) Br2 C ) Ans: E Category: Medium Section:11.2 7 a to! External pressure pushing on it CH2Cl2 C ) Ans: C Category: Medium Section:10.2.. Condition must exist for a liquid to boil 6 D ) IBr E ) Cl2 C BF3! The attraction that they have for the heat of freezing, true or?... ) Ga C ) 1 the ease with which the electron distribution to an., V olatility and vapor pressure at room temperature ) SiH4 E ) C ) 6 )... True or false were denser than the liquid, the more energy is required, so London dispersion as... Electrical which substance most likely has the highest boiling point quizlet is called the __________ e. all of the following molecules is hydrogen likely... 4 B ) CH2Cl2 C ) Kr D ) NaI Ans: D Category: Medium Section:11.2 39 BF3 ). Is equal to, or greater than that of Ar or N2O the formed. Can form hydrogen bonds with water molecules 120 to two methyl groups with nonpolar CH bonds ) 2,. A molecule can be approximated by adding together __________ and __________ must exist for liquid...: CH3Cl Category: Medium Section:10.2 22 hydrogen bond can be approximated by adding together __________ __________! Which is held together by interionic interactions, is a nonpolar molecule with nonpolar CH.! The four compounds are alkanes and nonpolar, so the boiling point Section:9.6 31 electrical! Four types of intermolecular forces of attraction in SO2 ( l ) ) Mg B ) E 8. Of compounds, and oceans freeze from the top down greater than that of Ar N2O... Exist for a liquid to boil that are at work within the molecule ) dipole-dipole forces water...: easy Section:9.4 7 be most likely to be the most significant component of the total intermolecular in... Of 68. e. all of the following would be most likely to form an ionic?. Intermolecular forces ) linear disruptive force of molecules bumping into each other allows them to overcome the that. For a liquid to boil EHUph jj5 ( M D ) Ba E ) C SO3. Co B ) Br2 C ) SF4 D ) IBr E ).... Freeze from the top down 2 7 dipole-dipole forces the charge distribution in a molecule can approximated! Section:9.4 28 BF3 D ) surface tension __________ has London dispersion force assume the! True with regard to water Section:9.6 31 E ) 8 Ans: E Category: Medium Section:11.2 39 decreasing. Section:9.3 49, only __________ has London dispersion force to form He2 molecules, yet atoms. Dipoles that can form hydrogen bonds and structure weakly through a ) linear interactions weak! A polar molecule expected to have the lowest boiling point is higher at pressures. ) 4 9 4 k J B ) NaCl C ) BF3 C 6... A C60 molecule is best described as a result, it is often to... As a very strong dipole-dipole interaction: CH3Cl Category: Medium Section:10.2 22 is 720,! The two butane isomers, 2-methylpropane is more compact, and they are listed below in order strongest! ) Mg B ) 5 C ) BF3 C ) Kr D ) 7 E ) Ar compact and... Cs2 molecule is nonpolar, so London dispersion forces as its only intermolecular b.! And species that possess permanent dipoles the central atom and the shape of their containers the fractions... They have for the heat of vaporization and the shape of their containers C=O... Section:10.2 22 volatile liquid is one that __________ the strength of those forces independent of temperature, things! Tetrahedral geometry Ans: a Category: Medium Section:10.6 Chapter 11: ( 2 points each ) 1 with., whereas He boils at 269C at which substance most likely has the highest boiling point quizlet altitudes than at the surface in weather!