1. In the following molecule, draw the correct Lewis structure. Also indicate the molecular geometry around the central atom, the hybridization around the central atom, and approximate bond angles. bond Molecular Geometry around Central Atom hybridi- zation CF;CHO angle * FCC= * cco= 2. Draw the previous molecule with correct geometry 3. Circle the chemical structure that has a +1 formal charge at the central atom. A) F-N-F B) HÖ-H C) HÖ-H D) H-N-H E) H-N=O

a) From the set of Lewis structures shown below, determine the best Lewis structure for TeFs. Please note that formal charges are intentionally left out of the structures. *0 O Structure A Linear b) What is the molecular geometry around the tellurium atom for the structure selected in parta)? Bent 0000 O Tetrahedral O Trigonal Planar O Trigonal Pyramidal Square Planar Seesaw O Square Pyramidal O T-shape O Trigonal Bipyramidal Octahedral Structure B sp c) What is the hybridization of the tellurium atom for the structure chosen in part a)? sp² spl Structure C "p²³d² O sp³d² Structure D sp'd O apd sp'd² d) Do any of the atoms in the structure chosen in part a) violate the octet rule? O Yes O No

For each molecule or ion, determine the preferred Lewis structure and use it to predict the molecular shape and bond angles. a)  H3O+ b)  XeF2 c)  I3- d) SNF3 (S central atom) e) POCl3 f) PF3

Molecule # 1 ТеОз- Draw the Lewis Structure below Calculate the number of valence electrons Draw the three-dimensional structure of the molecule using the "wedge and dash" notation. The molecular geometry is: This molecule is polar nonpolar (Circle your choice.) Our logic for this choice is: The formal charge on the central Te atom is on the terminal O atom is The hybridization of Te is Estimate O-Te-O bond angle Molecule # 2 CIF.+ Calculate the number of valence electrons Draw the Lewis Structure below Draw the three-dimensional structure of the molecule using the "wedge and dash" notation. The molecular geometry is: This molecule is polar nonpolar (Circle your choice.) Our logic for this choice is: The formal charge on Cl is The formal charge on F is The hybridization of Cl is Estimate F-Cl-F bond angle

Calculate the number of valence electrons Molecule # 5 SiF?- Draw the Lewis Structure below Draw the three-dimensional structure of the molecule using the "wedge and dash" notation. The molecular geometry is: This molecule is polar nonpolar (Circle your choice.) Our logic for this choice is: The formal charge on Si is The formal charge on F is The hybridization of Si is Estimate F-Si-F bond angle Molecule # 6 CC2F2 Draw the Lewis Structure below Calculate the number of valence electrons Draw the three-dimensional structure of the molecule using the "wedge and dash" notation. The molecular geometry is: This molecule is polar nonpolar (Circle your choice.) Our logic for this choice is: The formal charge on C is The formal charge on Cl/F is The hybridization of C is Estimate F-C-Cl bond angle

4. What will be the geometry about each central atom in the following molecules? Draw a sketch of the molecule. The skeletal structure for each molecule is listed in parentheses. a) C₂H₂ (HCCH) c) CH,NH, (H,CNH,) b) N₂H (H₂NNH₂) d) CF,COOH (both O atoms are attached to the second C, H atom is attached to O)

Write the Lewis structure for I3- on your paper.  Include formal charges on all atoms.  Include all resonance structures if there is resonance in this ion. Answer the following questions for the central atom in the species

would u help me with H2S

provide th following information for NCl3 and HCN including the Lewis structure and 3D sketch

Consider the following ion: BrO3¯. a) Show the full electron configuration for Br. b) Draw the most correct Lewis structure for BrO3¯ and briefly explain why your Lewis structure is correct. c) If the structure is stabilised by resonance, draw at least one of the possible resonance forms. If it is not stabilised by resonance, briefly explain why. d) What is the electronic geometry of BrO3-? What is its molecular shape? e) Does BrO3 have a dipole moment? Briefly justify your answer. f) On average, would you expect IO3¯ to have longer or shorter bonds than BrO3¯? Briefly explain your answer. g) Which of the following molecules would you expect to have the lowest vapour pressure? Briefly explain your choice. Br HO HO. Br- Compound A Compound B Compound C h) What is the molecular formula for Compound C? What is the empirical formula for Compound C?