- Draw a Lewis structure for cyanamide, NH₂CN, where all atoms have formal charge of zero. Then use the Lewis Structure to sketch a bonding diagram for NH₂CN. Include all overlapping orbitals, and orbitals containing lone pair electrons. Use hybrid orbitals for the carbon and the nitrogen atoms. Make sure to label all orbitals appropriately as (sp, sp², sp³, 2p, 1s...). Identify all bonding interactions as σ or л.

on the central atom without rearranging the remaining bonds in space (since the electron pairs are really still there). If you cannot put a name to any new molecular geometries, ask your instructor. NOTE: If a person asks for a geometry and does not specify molecular or electron pair, they mean molecular. Please watch the following video to understand the difference between electron geometry and the molecular geometry. https://www.youtube.com/watch?v=3ZsqcDOBv7g Table 2 Molecule Structural Formula Electron Geometry Molecular Geometry CO2 SO2 H,O NH3 TeCla CIF, 102 Exploring the Chemical World, PGCC

.) Give the molecular formula (e.g. C6H12O6) for the following compound. What is the hybridization (e.g. sp) of the indicated atom? NH₂ 1) Draw a valid structure with no formal charges for a molecule with the formula C6H₁3NO. Include lone pairs of electrons if there are any.

Do the same as above for the formula C6H10. Draw three isomers such that each atom makes the appropriate number of bonds, as indicated by their Lewis Dot Symbol. (There are many structures that work! Hint: These molecules will feature C-C pi bonds…)

Number of Molecule valence electrons Formal Charge Electron-Group Geometry Molecular Geometry Resonance SiSeH2 Si: Si: Select one ... Si: Select one ... Select one ... AIHCI2l" Al: Al: Select one ... Al: Select one ... Select one.. AsSel3 As: As: Select one ... As: Select one ... Select one ... AIH2CI- Al: Al: Select one ... Al: Select one .. Select one.. PTEF3 P: P: Select one ... P: Select one ... Select one ...

1. (CPS9, D10, L19, and Achieve) Draw a single best 3-D Lewis structure for the following molecules/ions. Include all lone pairs and indicate all non-zero formal charges. State the overall molecular shape. a) XcF b) (CH),CC(CH,), c) BeH, d) PF,Cl₂

Number of Molecule valence electrons Formal Charge Electron-Group Geometry Molecular Geometry Resonance HỌCI 14 O: 2- 0: Select one ... O: Select one ... Select one .. GEHATCII Ge: Ge: Select one ... Ge: Select one ... Select one SAts S: S: Select one ... S: Select one ... Select one . SbAt2Cl2* Sb: Sb: Select one .. Sb: Select one ... Select one ... PCI4* P: P: Select one ... P: Select one .. Select one ..

5. Draw the # and molecular orbitals for the discrete and localized T bonds in the following structures. Indicate any polar- ization these bonds may have in your diagram through the shapes of the discrete bonding and antibonding orbitals. e 6. Show any plausible resonance structures for the molecules given in Exercises 1 and 5. If there are no plausible resonance structures, indicate this (note that the molecule corresponding to letter A is the same in each problem). 7. Discuss the hybridization in the C-C and C-H bonds of cyclopropane, given that the H-C-H bond angle is 118°. withara --- totrachlorida b dingl A. B. C. D. 3

2) a) Consider the following molecule . Given what you have learned about hybridization theory, draw an image or images explaining the bonding situation in this molecule. I want you to draw out all of the orbitals, hybrid orbitals and how they overlap to form the bonds in the molecule. Indicate the % s or p character in the given atomic and hybrid orbitals. Which C-C bond or bonds are the longest? In a paragraph or so explain the image or images you just drew. b) Lastly, consider the molecule below. Indicate the Molecular formula, the molar mass, label the hybridization of each atom except for hydrogen, indicate any chiral centers with a *, which bond or bonds are the shortest, identify by name of each functional group with an arrow pointing to the group.

Table 3: Complete this table on your own. You may use you Hybridization of each atom Orbitals involvec Molecular geometry around central atoms(s) and name Polar or nonpolar, Draw dipole arrow Formula Lewis structure each bond CF2C12 NOCI SnCls PCl, CH;OH