8.13 In which of the following states would NaCl be electrically conducting: (a) solid, (b) molten (i.e., melted), (c) dissolved in water? Explain.

3. Consider [Fe(H2O)]Cl;. The bonding between iron(III) and water is best described as: (a) metallic (b) ionic (c) covalent (d) coordinate covalent

A portion of a two-dimensional “slab” of NaCl(s) is shownhere (see Figure 8.2) in which the ions are numbered.(a) Which colored balls must represent sodium ions?(b) Which colored balls must represent chloride ions?(c) Consider ion 5. How many attractive electrostatic interactionsare shown for it? (d) Consider ion 5. How manyrepulsive interactions are shown for it? (e) Is the sum of the attractiveinteractions in part (c) larger or smaller than the sumof the repulsive interactions in part (d)? (f) If this pattern ofions was extended indefinitely in two dimensions, would thelattice energy be positive or negative? [Section 8.2]

Which of the following elements does not follow the octet rule? (a) sodium (b) helium  (c) krypton (d) carbon (e) sulfur

Draw a Lewis electron-dot symbol for (a) As; (b) Se; (c) Ga.

Please don't provide handwritten solution ....

Part A)   Out of the following, the species with a single covalent bond is:   (a)   CO                       (b)   CN-          (c)   Cl2           (d)    N2     Part B)  Which of the following compounds has ionic bonds only? (a)    NH4ClO4                                    (b)    Mg3N2                        (c)    Mg3(PO4)2                  (c)   CHCl3   Part C)   The molecular shape and polarity of xenon tetrafluoride are:   (a)   Tetrahedral & non-polar             (b)   square planar & non-polar (c)    Square pyramidal & polar          (d)   square planar & polar

(a) Use the VSEPR theory to predict the structure of theNNO molecule.(b) The substance NNO has a small dipole moment.Which end of the molecule is more likely to be thepositive end, based only on electronegativity?