Polarity and Molecular geometry Chem unit 4

Front

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

Back

Tetrahedral

Front

What is the VSEPR shape of a molecule with three bonding pairs and no lone pairs?

Back

Trigonal planar

Front

What is the definition of dipole-dipole forces?

Back

Forces between polar molecules; medium strength.

Front

What characteristic do nonpolar molecules have regarding lone pairs?

Back

Nonpolar molecules have no unbonded pairs in the center.

Front

What defines a polar covalent bond?

Back

A bond that is not shared equally between two atoms.

Front

What is the VSEPR shape of a molecule with two bonding pairs and no lone pairs?

Back

Linear

Front

What is the VSEPR shape of a molecule with three bonding pairs and one lone pair?

Back

Trigonal pyramidal.

Front

What type of bond is formed between two nonmetals with different electronegativities?

Back

Polar covalent bond.

Front

What is the effect of lone pairs on molecular geometry?

Back

Lone pairs repel more strongly than bonding pairs, altering the shape.

Front

What is the VSEPR shape of a molecule with two bonding pairs and one lone pair?

Back

Bent.