1. b.O (because in O-atom there is no d-orbital availbility)
2. C (it is having octet for all the atoms)
3. b (SF2 having bent shape and also polar bonds.so that it is polar)
4. O-2 = ON OXYGEN atom there were four pairs of electrons
5. Ca^2+ < K^+ < Ar < Cl-< S2-
6. H-F > O-H > N-H > C-O > N-O
Which of the following atoms cannot exceed the octet rule in a molecule? a. CI b....
Arrange the following in order of increasing bond length: P-O P-CI S-O ther session 3 4 5 6 7 8 a 10 11 12 13 Arrange the following in order of increasing bond strength (bond energy): nene. P-O P-CI S-O session Rank the following N-N bonds in increasing bond energy N-N N=N • NEN mer 3 4 5 6 7 8 9 10 11 12 13 Rank the following C-C bonds in increasing bond length. ergy): C-C C=C . CEC...
10. Which of the following does not obey the octet rule? a) PCI b) H0 c) NH, d) CCI, 11. Which one of the following is the most polar a) H-F b) H-CI c) H- Br d) H-
14 Which of the following is true if a molecule possesses lone pairs on the central atom but is not hydrogen bonded? (A) the molecule will have a hydrogen bonded directly to an N, O, or F (B) the molecule will be nonpolar (C) the molecule will be an ionic crystal lattice structure where there are strong clectrostatic (D) the molecule will be polar 15 A substance with strong intermolecular forces will have (A) low boiling point (B) high reactivity...
. Select the most polar bond amongst the following. A) C-O B) Si-F C) CI-F D) C-F E) C-I 2. Hydrazine, N2H, is a good reducing agent that has been used as a component in rocket fuels. Select its Lewis structure A) B) C) D H-N-N-H E) None of the above is correct. 3. Select the best Lewis structure for CICN D) CI-C-N E) :Cic-N
Explain (with a Lewis structure) how each of the following molecules violates the octet rule: a) H2Se b) SF c) NO2 Rank the following bonds in order of increasing bond polarity: C-C, C-O, C-F, C-I.
1. A. Put the following atoms in order of increasing electronegativity Br N Н B. Using the atoms above, which pair of atoms will create the most polar bond? C. Put the bonds below in order from least to greatest bond polarity С-Н N-H Н-Br D. Explain how you arrived at your answers to B and C 2. A. For the following Lewis structures, determine the formal charge on all of the atoms in the structure H H O :...
Chemistry problem help as soon as possible. 21. Which of the following has the bonds ranked in correct order in tems of polarity, from the mo polar to the least polar? (bonds: O-S, N-H, F-S. O-H, and N-Br Electronegativity values F-40 o-3.5. N a. F-S, O-H, O-S, N-H, N-Br 30. Br#28,s-25,Hs21 b. O-H, F-S, O-S, N-Br, N-H e. None of the above is correct 22. Which of the following statements regarding covalent bonds is faise? a. Double bonds are formed...
How many valence electrons does S^2 have? A. 3 B. 8 C. 15 D. 1 E. 18 52. Which of the following ground-state ions has the largest number of unpaired electrons? A. Cr^2+ B. Mn^2+ C. Ni^2+ D. Cu^+ E. Co^2+ 53. Arrange the following ions in order of increasing ionic radius: K^+, P^3-, S^2-, CI^-, increasing radius A. K^+ < CI^- < S^2- < P^3- B. CI^- < S^2- < P^3- < K^+ C. K^+ < P^3- < S^2-...
Rank the following bonds from highest polarity to the lowest: 1 most polar;4 least polar N--CI [Select ] C-Si [Select] O--P [Select ] H--C [Select ]
Which of the following bonds is most polar? B-O O C-H ON-CI ON-F