E: 111. Benzene has of which a.) Three, three b.) Six, three are filled with electrons. pi molecular orbitals (include bonding and anti-bonding) c.) Six, six d.) Twelve, six
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Benzene has ____ pi molecular orbitals (include bonding and anti-bonding) of which ____ are filled with electrons.
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- 17. Which of the following structures is different from the other three ? (1) (2) (3) А. (1) (4) В. (3) С. (4) Abu. D. (2)The Lewis structure of an organic compound is shown below. Determine the orbitals used in bonding, as well as the number of sigma and pi bonds. 1ペー= 10 H 5. :N. 11 Total sigma bonds: [Select ] Total pi bonds: [Select] Write "none" if no orbital of that type is used to bond. Unhybridizedorbital used to Hybridized orbital used to Atom bond bond H. [ Select ] [Select] [ Select ] [ Select] N C #2 [ Select] [ Select] [ Select ] [ Select ]6. The energy required (or released) when one electron is captured by a neutral atom or ion is the atomic properties named...? A. lonization Energy B. Electronegativity C. Electron Affinity D. Polarizability E. None of these are correct 7. The orbital hybridization at the central carbon of the linear hydrocarbon allene (CH2=C=CH2) is best described as...? А. 2sp В. 2sp? С. 2sp3 D. 2s?p? E. None of the above
- 26. TRUE or FALSE: The bond angles in the orthonitrate anion (NO43-) are all equal and each measure 109.5°. A. TRUE B. FALSE 27. Since the orthonitrate anion (NO43-) is best described as an acyclic molecule, which pairing describes the electronic structure and hybridization its central atom? A. Linear and sp B. Trigonal planar and sp2 C. Pyramidal and sp3 D. Tetrahedral and sp3 E. None of the above are correct 28. Recalling that orthonitrate anion (NO43-) is best described as acyclic, what is the formal charge at the central atom of this ion in its most important resonance form? А. —2 В. —1 С. О D. +1 Е. +2 29. Recalling that the orthonitrate anion (N043-) is best described as acyclic, how many non-bonded (lone) electron pairs are there (in total) in this ion in its most important resonance structure? A. 3 non-bonded (lone) electron pairs in total. B. 9 non-bonded (lone) electron pairs in total C. 11 non-bonded (lone) electron pairs in total D. 12 non-bonded (lone) electron pairs in…Draw the Lewis structures and predict the hybridization (sp, sp2, sp3), geometry (linear, trigonal, tetrahedral) and bond angles (180°, 120°, 109.5°) for the central atoms in the following compounds. a. N in NH3 d. C and N in CH3CHNH b. O in CH2O e. C and N in CH3CN c. C in CH3CHCHCH3Consider the geometry and hybridization of the nitrogen atom (N) in the compound shown below and identify what would be the most stable arrangement. Explain your choice using each of the following terms: electrons; p-orbital; sp'; sp'; trigonal planar; trigonal pyramidal. :0: II .C. H H エ :Zーエ エ エ
- Arrange the compounds in the order of increasing boiling point (lowest first) " H;C“ *CH3 H2O CH;CH2OH CH;CH2SH I II II IV A. II, I, II, IV B. I, IV, II,II C. IV, I, II I D. I, IV, III, II How many pi-orbital electrons are in the following molecule? H A. 4 В. 6 С. 8 D. 1028W.) The number of protons is necessary to illustrate covalent bondingX.) A bond contains two electronsY.) Head-to-head overlap of p orbitals result in pi bondZ.) In Madelung's rule, 3s is followed by 4sA.) If all 4 statements are trueB.) If 3 of the 4 statements are trueC.) If 2 of the 4 statements are trueD.) If only 1 of the 4 statements is trueE.) If none of the 4 statements is true1. What are the VSEPR shapes (i.e., molecular geometries) associated with the nitrogen atoms in this molecule? (A) (B) (C) (D) I bent bent bent tetrahedral 2. How many sp² hybridized carbon atoms are present in this structure? (A) 1 HO. Br II trigonal pyramidal N. bent trigonal pyramidal I bent (A) aldehyde, ether, sulfide (B) aldehyde, ketone, thiol (C) amide, ketone, sulfide (D) amide, ether, ester II NH₂ III III trigonal pyramidal (B) 4 (C) 5 (D) 6 3. Which functional groups are NOT present in this molecule? trigonal pyramidal tetrahedral trigonal pyramidal
- A. What is the hybridization of the central atom in SeOF2? Hybridization = What are the approximate bond angles in this substance? Bond angles = O B. What is the hybridization of the central atom in SO₂? Hybridization = What are the approximate bond angles in this substance? Bond angles = Submit Answer Retry Entire Group 9 more group attempts remaining13:57 O Vol) Question 8: How many of the atoms in the structure shown in Figure 8 has sp hybridisation? [The answer is a whole number.] Figure 8 CH Question 9: Predict the relative boiling points of the substances in Figure 9 and rank these boiling points from the lowest to the highest. [The sign approximately equal.] * ~means O D101. Hybridization of C2 and C3 ofSEE MORE QUESTIONS