Unit 2 TSNF

Front

What is VSEPR theory?

Back

VSEPR (Valence Shell Electron Pair Repulsion) theory is a model used to predict the geometry of individual molecules based on the repulsion between the electron pairs in the valence shell of the central atom.

Front

What is the molecular shape of a molecule with four bonding pairs and no lone pairs?

Back

Tetrahedral.

Front

What type of compounds generally have higher melting points: ionic or covalent?

Back

Ionic compounds.

Front

What is the Lewis Dot structure used for?

Back

The Lewis Dot structure is used to represent the valence electrons of atoms within a molecule, helping to visualize bonding and lone pairs.

Front

What is the predicted molecular geometry of PCl5?

Back

Trigonal bipyramidal.

Front

Which bond has a longer bond length: O=O or F-F?

Back

F-F.

Front

What defines a polar molecule?

Back

A polar molecule has an uneven distribution of electron density, resulting in a dipole moment.

Front

Are symmetrical molecules generally polar or nonpolar?

Back

Nonpolar.

Front

What is the significance of bond length in chemistry?

Back

Bond length is the distance between the nuclei of two bonded atoms, influencing the strength and stability of the bond.

Front

What is the relationship between bond strength and bond length?

Back

Generally, shorter bonds are stronger than longer bonds.