Draw Lewis structures and assign formal charges for the following compounds and ions. Note anyresonance forms and explain which resonance form is the most important. Make a note of any otherunusual features (such as "this one doesn't work" and why-what are the shortcomings of the model.)2-CO3²-B₂H6COO₂ (paramagnetic)H₂O*LiFIF,NO₂CNO (include isomers)Al₂Cl6

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Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The value of Ka1 of hypophosphorous acid, H3PO2, is nearly the same as the Ka1 of phosphoric acid, H3PO4. Draw a Lewis structure for phosphoric acid that is consistent with this behavior. Draw the Lewis structure with the formal charges minimized. Do not include formal charges in your structure. Include hydrogen atoms and nonbonding electrons in the structure.
Draw the most plausible resonance structure for the cyanate ion, OCN− . Be sure to include all lone pair electrons and nonzero formal charges.
1a)Rank the following ionic compounds in order of lattice energy, from the least exothermic (least negative lattice enthalpy) to the most exothermic (most negative lattice enthalpy): Rbl, CaO, SrO, NaCl 1b)Rank the following elements in order of increasing metallic character (from least metallic to most metallic): Ca, S, Rb, Ar, Se 1c) by using the attached table of bond enthalpies, predict ?rH of the following reaction in kJ/mol H2N-NH2 + O2 ---> N2+ 2H2O
Which of the four resonance structures for the nitrite ion below is the least likely? Remember to consider the formal charge on each atom, and the number valence electrons in the structure. Select one: A B C D A N B C D ö=
1a)Rank the following ionic compounds in order of lattice energy, from the least exothermic (least negative lattice enthalpy) to the most exothermic (most negative lattice enthalpy): KCI, SrO, RbBr, CaO 1b)Rank the following elements in order of decreasing metallic character (from most metallic to least metallic): S, CI, K, Cs, Se 1c) by using the table of bond enthalpies, predict ?rH of the following reaction in kJ/mol H2C=CH2 + Cl2 ---> Cl-CH2-CH2-Cl
One of the Lewis structures that can be drawn for the N₂O molecule is: What are the formal charges on the N (end), N (center), and O atoms in this structure? 0, 0, 0 -1, 0, +1 +1, 0, -1 -1, +1, 0 +1, -1, 0
The azide ion, N3, is a symmetrical ion, all of whose contributing structures have formal charges. Draw three important contributing Lewis structures for this ion. Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all nonbonding electrons. Show the formal charges of all atoms in the correct structure. Q Q Q ? ⒸNNNITY [] + F g i с H N S P Br CI | X Press [TAB] to move to the next option. Press (ALT+A) to get to the bonds and More
How many resonance structures can be drawn for the hydrogen tellurate ion (HTeO4–) in which the central tellurium atom bears a –1 formal charge and the oxygens bear formal charges of either zero or –1? Enter your answer as a whole number.
Draw Lewis structures and assign formal charges for the following compounds and ions. Note any resonance forms and explain which resonance form is the most important. Make a note of any other unusual features (such as "this one doesn't work" and why- what are the shortcomings of the model.) CO3²- CO NO₂ CNO (include isomers) Al₂Cl6 B₂H6 O2 (paramagnetic) H3O+ LiF IF7
Two possible Lewis structures for the cyanate ion are shown below, with formal charges (FC) calculated for each atom. One structure has carbon as the central atom and the other has a nitrogen as a central atom. By considering formal charges, which arrangement of atoms is the best, and therefore most likely structure for cyanate? FC: -1 0 0 FC: -1 +1 -1 |:0—C=N:1 STRUCTURE A STRUCTURE B Structure A Structure B Both are equally likely QUESTION 19 Two possible Lewis structures for the thiocyanate ion are shown below, with formal charges (FC) calculated for each atom. One structure has carbon as the central atom and the other has a nitrogen as a central atom. By considering formal charges, which arrangement of atoms is the best, and therefore most likely structure for thiocyanate? FC: 00-1 FC: -1 +1 -1 Ec: STRUCTURE A STRUCTURE B O Structure A Structure B
Oxygen gas reacts with sulfur tetrafluoride to slowly form sulfur tetrafluoride monoxide gas. Balance the equation for the formation of sulfur tetrafluoride monoxide. chemical reaction: 0,(g) + SF (g) → OSF,(g) Draw the Lewis structure of OSF, where the formal charge is zero on each atom. The sulfur atom is the central atom in the structure, and it is bonded to the oxygen atom and each of the four fluorine atoms. Select Draw Rings More Erase Use the bond energies in the table to estimate the enthalpy of reaction for the formation of sulfur tetrafluoride monoxide. étv Aa
Complete the Lewis structures for COCl₂ and SOCI₂ using the skeletal structure shown below, being sure to follow the procedure for minimizing the sum of the absolute values for the formal charges, where the octet rule need not be followed. Based on the complete structures, which statement below is true? [a_i_d] Cl—N—C Cl-Br Cl Hint: Consider the potential for multiple bonds on the molecules and be sure to account for all valence electrons. O The NOCI₂ exhibits both residual formal charges and resonance hybrids, while the BrOCI₂+ exhibits formal charges but no resonance hybrids. O No answer text provided. The NOC₂ exhibits both formal charges and resonance hybrids, while the BrOCl₂ exhibits resonance hybrids but no formal charges. O At least one atom in each molecule exhibits formal charges, and the molecules have no resonance hybrids. O The BroCl₂ exhibits both formal charges and resonance hybrids, while the POCI₂ exhibits resonance hybrids but no formal charges. O The NOCI₂ exhibits…

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