2.7 VSEPR, Bond Hybridization, and Molecular Properties

Vocabulary flashcards covering VSEPR theory, molecular geometries, bond angles, central atom hybridizations, bond orders, bond energies, and resonance structures.

Molecular Geometry of $\text{ICl}_2^-$

A molecular geometry determined to be linear, with a predicted bond angle of $180^\circ$.

$$\text{SOF}_4$$

A molecule analyzed under VSEPR theory to determine its molecular geometry and predict its bond angles.

Sigma ($\sigma$) and Pi ($\pi$) Bonds

Types of covalent bonds evaluated alongside central atom hybridization to describe the bonding structure of species such as $\text{CN}^-$ and $\text{H}_2\text{CO}$.

Ammonia ($\text{NH}_3$) Polarity

The polarity of $\text{NH}_3$, evaluated using its molecular shape, polar bonds, and whether individual bond dipoles cancel out.

Ethane vs. Ethene Carbon-Carbon Bond Order

A comparison of carbon-carbon bonding where ethene ($\text{C}_2\text{H}_4$) has the higher bond order due to its double bond compared to the single bond in ethane ($\text{C}_2\text{H}_6$).

Ethane vs. Ethene Carbon-Carbon Bond Energy

A comparison of carbon-carbon bond strength where ethane ($\text{C}_2\text{H}_6$) has the lowest bond energy due to possessing a single bond rather than a double bond.

Boron Trifluoride ($\text{BF}_3$)

A compound analyzed for its Lewis structure, molecular geometry, bond angles, central atom hybridization, and molecular polarity.

Carbonate Ion ($\text{CO}_3^{2-}$)

A polyatomic ion evaluated for its Lewis structure, molecular geometry, bond angles, central atom hybridization, and molecular polarity.

Sulfate Ion ($\text{SO}_4^{2-}$)

A polyatomic ion evaluated for its Lewis structure, molecular geometry, bond angles, central atom hybridization, and molecular polarity.

Methane ($\text{CH}_4$)

A hydrocarbon evaluated for its Lewis structure, molecular geometry, bond angles, central atom hybridization, and polarity.

Oxygen Difluoride ($\text{OF}_2$)

A compound analyzed for its Lewis structure, molecular geometry, bond angles, central atom hybridization, and polarity.

Nitrogen Trifluoride ($\text{NF}_3$)

A molecular compound evaluated for its Lewis structure, molecular geometry, bond angles, central atom hybridization, and polarity.

Hydrogen Cyanide ($\text{HCN}$)

A linear molecule evaluated for its Lewis structure, bond angles, central atom hybridization, and molecular polarity.

Hertz

A unit of frequency defined in unit conversions as $1\,\text{hertz} = 1\,\text{s}^{-1}$.

Diatomic Molecules ($\text{F}_2$, $\text{O}_2$, $\text{N}_2$) Bond Properties

A set of homonuclear diatomic molecules evaluated to compare bond order, find which possesses the highest bond energy, and find which has the longest bond.

Formate Ion ($\text{CHO}_2^-$) Resonance

The representation of all possible resonance structures for the formate ion used to determine the bond order between carbon and oxygen.