The bond lengths of ethane, ethene, and ethyne were determined, and a graph of the C-H bond length vs. % s-character of the C hybrid orbital was made. Comment on the observed trend, additionally. How would this trend change if C-H bond energy vs. % s-character of the C hybrid orbital was graphed? Which hydrocarbon has the strongest carbon-carbon bond?

Describe the structure of the SP2 hybridized carbon atom. With the participation of which orbital can it form a π-bond with another sp2-hybridized carbon atom?

Determine the hybridization state of each carbon atom in nemotin. HC ||| = C I с = ||| C T CH || C CH :0: CH :O: || с CH₂ CH₂

What molecular geometry does VSEPR predict for the carbon and the nitrogen in methylamine (CH3NH₂)? Choose all that apply! Trigonal pyramidal Tetrahedral T-shape Trigonal planar Linear Bent

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.

These molecules are called constitutional (or structural) isomers because they share the same chemical formula but have different patterns of atomic connectivity. Draw as many constitutional isomers as you can for C5H8 in bond-line notation. It may be helpful to draw a Lewis Structure for one of the isomers first.

Chemistry Draw a three-dimensional representation of the valence orbitals and their bonding for compound CH2CHOH. Clearly show all valence electrons for each atom. Provide the following labels: atomic symbols, a code for each type of orbital used, a sigma bond, a pi bond and the molecular shape and approximate bond angles around the non- hydrogen atoms.

8. a) State the hybridization (sp°, sp', sp) of each carbon in this molecule, going left to right. HC b) Write "most" under the most stable alkene. Write "least" under the least stable alkene. c) Write "most" under the most stable cation. Write "least" under the least stable cation. CH2 CH3 CH3 CH3 CH3 H3C CHT HC H3C ONLY roactions we have studied this semester.

What is the Lewis Structure of CH2Se, the steric number, the electron pair geometry, the molecular geometry, and how many double bonds does it have?