Pls help on all asked questions. 3. The geometry of ICI, as predicted by VSEPR, is best described by the following:a. pyramidalb. tetrahedralc. square planard. cuboidale. trigonal4. Which of the following lists species in order of decreasing boiling points?a. H2, N2,NH3b. N2, NH3, H₂C. NH3, H2, N2d. NH3, N2, H2e. H2, NH3, N2

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Answered: 3. The geometry of ICI, as predicted by…

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter8: Molecules And Materials

Section: Chapter Questions

Problem 8.22PAE

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The intermolecular forces present in CH3NH2 include which of the following? I. dipole-dipole II. ion-dipole II. dispersion IV. hydrogen bonding CH3NH2 O land II O I I, Il and IV O L ll and IV O Il and IV
In which of these molecules will dipole moment be equal to zero? A. CO B. CH2CI2 C. SO3 D. SO2 none of these O B O D A
pls answer all 3 and make sure it’s correct
Hi, please choose which of the two substances has the property listed on the left.
1) Which type of intermolecular interaction would be the strongest in each substance (between molecules of the same substance)? It may help to draw the Lewis structures first. a. Ammonia, NHs. b. Bromine, Bra c. Hydrogen Chloride, HCl, d. Methane, CH4
A molecule or ion that donates the hydrogen in a hydrogen bond is a hydrogen b A molecule or ion that binds to this hydrogen is a hydrogen bond acceptor. Specify the hydrogen bonding behavior of the 4 species below by selecti donor for species that act as donors only acceptor for species that act as acceptors only both for species that act as both donors and acceptors neither for species that act neither as donors nor as acceptors. CH3 H3C-Si-CH3 ČH3 Hydrogen bonding behavior B Hydrogen bonding behavior Hydrogen bonding behavior >
Which pair of molecules is most likely to be miscible?
11. What is the electron-domain geometry of water molecule (H2O)? a. bent b. tetrahedral c. trigonal planar d. linear 12. Write the correct Lewis dot structure for O2. Which statement correctly describes the structure of the whole molecule? a. There is a double bond and four lone pairs. b. There is a double bond and six lone pairs. c. There is a single bond and six lone pairs. d. There is a single bond, a double bond, and six lone pairs. 13. If there are four (4) electron pairs around the central atom of a molecule, these electron pairs are in a/n a. trigonal planar b. trigonal pyramidal arrangement. C. octahedral d. tetrahedral 14 The molecular geometry of the molecule NF3 is a. linear b. trigonal pyramidal c. tetrahedral d. trigonal planar 15 Which of the following species will exhibit tetrahedral molecular geometry? d. PCI5 a. CCI4 b. CO2 C. O3
7. Electronegativity All about ammonia (NH3). Sb (antimony, atomic #51,) is in same Periodic Table column as N. The boiling point of SÜH3 (stibine, -17 °C) is slightly higher than NH3 (-33 °C). H 2.1 N 3.0 Sb 2.1 7a. What kinds of intermolecular interactions would occur in NH3 (1)? What kinds of intermolecular interactions would occur in SbH3 (1)? Is it surprising or expected that stibine would have a higher boiling point than ammonia? What could account for this higher boiling point?
Which would you expect to have the highest melting point? I. CaO II. MgO Because 1. The internuclear distance is smaller, therefore the force is the stronger and requires more energy to overcome. II. The charge is higher, therefore interactions are stronger and require more energy to overcome. O II, II O I,I O I, II O II, I
4. Which of the following compounds would be expected to have the lowest melting point? a. AIF3 b. RbF c. NaF d. MgF2 e. CaF2
A certain gaseous molecular compound is 29.7% S and 70.3%F. A 50.0 g sample of this gas occupies 11.3 L at 1.00 atm and 298 K,. Are the molecules of this compound polar?

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