Identify the possible resonance structure(s) for N₂O. Check all that apply. N=N=0 D :N=N-0: ■ :N-0-N: | :Ñ— U ☐ :N—N=0: :N=0―N: • N=0=N U -ON: D:N-N-0: ☐ None of the above Х show work. don't give Ai generated solution

The first resonance structure of nitromethane, CH, NO,, is shown. H. +1 Н-С—N H Determine the correct second resonance structure of nitromethane. H O H • •-1 +1 H-C=N • -1 C=N H ••-1 H H. •• -1 O: H-C-N H +1 Н- С—N. H :Ö: H :0: :0:

Part B The dipole moment (u) of HBr (a polar covalent molecule) is 0.844D (debye), and its percent ionic character is 12.5 % . Estimate the bond length of the H Br bond in picometers. Note that • 1D= 3.34 x 10-30 C .m and • in a bond with 100% ionic character, Q = 1.6 x 10-19 C. Express your answer to two significant figures and include the appropriate units. HA ? r= 5.3 • 1018 pm

What are the formal charges on the sulfur (S), carbon (C), and nitrogen (N) atoms, respectively, in the "best" or most realistic Lewis structure shown below? The possible Lewis structures for the thiocyanate ion, SCN, are S=c=N] $-c=Ñ]' [:s=C-N;T Structure A Structure B Structure C Express your answers as integers separated by commas. • View Available Hint(s) formal charge on sulfur (S), carbon (C) and nitrogen (N) atoms = Submit

Which of the following are possible resonance structures for HNO3? Select all that apply. ... :Ö: 0=N=Ö-H O: || 0=N-0-H :O: Ö-N=Ö-H

Which of the following is NOT CORRECT about the formal charge of each of the atoms in the structure? :ö: ... нн A) C = 0 (B) H = 0 O = -1 D None of the choices

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Write resonance forms that describe the distribution of electrons in each of these molecules or ions. (a) sulfur dioxide, SO2 (b) carbonate ion, CO3²- (c) hydrogen carbonate ion, HCO3- (C is bonded to an OH group and two O atoms) (d) pyridine: H. H. (e) the allyl ion: H H H H-C-C-c-H

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Incomplete Lewis structures for the nitrous acid molecule,HNO2, and the nitrite ion, NO2-, are shown here. (a) Completeeach Lewis structure by adding electron pairs as needed.(b) Is the formal charge on N the same or different in thesetwo species? (c) Would either HNO2 or NO2- be expected toexhibit resonance? (d) Would you expect the N=O bond inHNO2 to be longer, shorter, or the same length as the N¬Obonds in NO2?