For the species below draw additional resonance

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For the species below draw additional resonance structures (where all atoms have access to an octect of electrons) for species A, B, C, and D . Determine the bond order of the bond from the underlined C to underlined O for the lowest energy structure(s) . You may need to evaluate the formal charge of the additional species you draw. These are species in an aprotic solvent, so only electrons may be moved, not hydrogen atoms. For each lettered structure below, input the bond order as an integer (1,2,etc) or improper fraction (4/3, 5/4, etc). Structure A B C D Bond Order 2 1 2 2 3/2 1.5 3 3 Which structure A-D has the strongest underlined C-O bond? D D 13. 0/0.25 points | 2/5 submissions How many moles of nitrate ions, calcium ions, and oxygen atoms are present in 0.144 mol of calcium nitrate? nitrate ions .048 0.288 mol calcium ions .072 0.144 mol oxygen atoms .012 0.864 mol 14. --/0.25 points | 0/5 submissions Bonus/Replacement HW#2 ... 7 of 10 12/14/08 3:06 AM
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How many moles of elemental oxygen gas (O 2 ) must react with elemental phosphorus (P 4 ) to produce 29.4 moles of diphosphorus pentoxide? (No Response) 73.5 mol How many moles of elemental oxygen gas are required to produce 47.0 moles of nitrogen monoxide? (No Response) 23.5 mol How many moles of hydrogen atoms are present in 53.1 moles of ammonia (NH 3 )? (No Response) 159.3 mol 15. 0.25/0.25 points | 1/5 submissions List four common ions with a valence electron configuration of [Kr]. List the ions in the order of increasing atomic number. Input format example: N^3- Hint: two anions and two cations. Se^2- Se2- -or- Se-2 -or- Se^2- -or- Se^-2 Lowest Atomic Number Ion Br^1- Br1- -or- Br-1 -or- Br^1- -or- Br^-1 Rb^1+ Rb1+ -or- Rb+1 -or- Rb^1+ -or- Rb^+1 Sr^2+ Sr2+ -or- Sr+2 -or- Sr^2+ -or- Sr^+2 Highest Atomic Number Ion 16. 0.25/0.25 points | 2/5 submissions a) Using only the position of the atoms on the periodic table, determine the correct order for ranking the bonds according to increasing polarity. I-Cl, Sn-Cl, Ba-Cl, Cl-Cl Cl-Cl, Sn-Cl, I-Cl, Ba-Cl Ba-Cl, Cl-Cl, I-Cl, Sn-Cl Ba-Cl, Sn-Cl, I-Cl, Cl-Cl I-Cl, Cl-Cl, Sn-Cl, Ba-Cl Cl-Cl, I-Cl, Sn-Cl, Ba-Cl 17. 0.17/0.25 points | 1/5 submissions No Marks. To determine what portion of the question you have correct, click on question score at the top of the assignment. Be sure to refresh question score after each submission. Bonus/Replacement HW#2 ... 8 of 10 12/14/08 3:06 AM
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Note that lone pairs are not included in the following structure, but C, N, and O all obey the octet rule. Determine the labeled bond angles and the hybridizations of the labeled atoms. Do nothing to indicate a superscript. For example, write sp3 for sp 3 . bond angles Lewis Structure hybridizations = 180 180 a sp2 sp = 90 109 b sp3 sp3 = 120 120 c sp2 sp2 18. 0.25/0.25 points | 3/5 submissions No Marks. To determine what portion of the question you have correct, click on question score at the top of the assignment. Be sure to refresh question score after each submission.
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  • Spring '08
  • BIGHAM
  • Chemistry, Atom, Ion, Oxide, Valence electron, Bonus/Replacement HW

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