Concept explainers
(a)
Interpretation:
The resonance structure of
Concept introduction:
Resonance structures are defined as a set of two or more Lewis structures that explain electronic bonding. Resonance structure can explain the delocalized electrons that cannot be signified by a single Lewis formula with an integer number of covalent bonds.
(b)
Interpretation:
The
Concept introduction:
Resonance structures are defined as a set of two or more Lewis Structures that explain electronic bonding. Resonance structure can explain the delocalized electrons that cannot be signified by a single Lewis formula with an integer number of covalent bonds.
(c)
Interpretation:
Whether
Concept introduction:
Resonance structures are defined as a set of two or more Lewis Structures that explain electronic bonding. Resonance structure can explain the delocalized electrons that cannot be signified by a single Lewis formula with an integer number of covalent bonds.
(d)
Interpretation:
The hybrid orbitals used by the C atom and the number of pi bonds C formed needs to be determined.
Concept introduction:
Resonance structures are defined as a set of two or more Lewis Structures that explain electronic bonding. Resonance structure is capable of explaining the delocalized electrons that cannot be signified by a single Lewis formula with an integer number of covalent bonds.
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LCPO CHEMISTRY W/MODIFIED MASTERING
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- In addition to ammonia, nitrogen forms three other hydrides: hydrazine (N2H4), diazene (N2H2), and tetrazene (N4H4).(a) Use Lewis structures to compare the strength, length, and order of the nitrogen-nitrogen bonds in hydrazine, diazene, and N2.(b) Tetrazene (atom sequence H2NNNNH2) decomposes above 08C to hydrazine and nitrogen gas. Draw a Lewis structure for tetrazene, and calculate ΔH°rxn for this decomposition.arrow_forward19. :O: || :0-N- O: Which of the following statements, if true, would support the claim that the NO3 ion, represented above, has three resonance structures? (A) The NO3 ion is not a polar species. (B) The oxygen-to-nitrogen-to-oxygen bond angles are 90°. (C) One of the bonds in NO3 is longer than the other two. (D) One of the bonds in NO3¯ is shorter than the other two.arrow_forwardDraw the Lewis structure with lowest formal charges, and determine the charge of each atom in (a) OCS; (b) NO. (C)CN−; (d) ClO−.arrow_forward
- (a) Construct a Lewis structure for O2 in which each atomachieves an octet of electrons. (b) How many bondingelectrons are in the structure? (c) Would you expect theO¬O bond in O2 to be shorter or longer than the O¬Obond in compounds that contain an O¬O single bond?Explain.arrow_forwardAcetylene 1C2H22 and nitrogen 1N22 both contain a triplebond, but they differ greatly in their chemical properties.(a) Write the Lewis structures for the two substances. (b) Byreferring to Appendix C, look up the enthalpies of formationof acetylene and nitrogen. Which compound is more stable?(c) Write balanced chemical equations for the completeoxidation of N2 to form N2O51g2 and of acetylene to formCO21g2 and H2O1g2. (d) Calculate the enthalpy of oxidationper mole for N2 and for C2H2 (the enthalpy of formationof N2O51g2 is 11.30 kJ>mol). (e) Both N2 and C2H2 possesstriple bonds with quite high bond enthalpies (Table 8.3).Calculate the enthalpy of hydrogenation per mole for bothcompounds: acetylene plus H2 to make methane, CH4;nitrogen plus H2 to make ammonia, NH3.arrow_forwardIn addition to ammonia, nitrogen forms three other hy-drides: hydrazine (N₂H₄), diazene (N₂H₂), and tetrazene (N₄H₄).(a) Use Lewis structures to compare the strength, length, and or-der of nitrogen-nitrogen bonds in hydrazine, diazene, and N₂.(b) Tetrazene (atom sequence H₂NNNNH₂) decomposes above 0°C to hydrazine and nitrogen gas. Draw a Lewis structure fortetrazene, and calculate ΔH°ᵣₓₙ for this decomposition.arrow_forward
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