Chemistry Topic 6 - Molecule Polarity

Front

What determines the effect of polar bonds on the polarity of the entire molecule?

Back

The molecule shape.

Front

What are the two main factors that determine molecular polarity?

Back

Dipole moments and molecular shape.

Front

What determines whether or not electrons in a molecule are shared equally?

Back

Polarity.

Front

What condition must be met for a molecule to have no net dipole moment?

Back

All moments cancel out.

Front

What does the arrow in a dipole moment diagram indicate?

Back

The direction of the polar bond in a molecule.

Front

Define molecular polarity.

Back

Molecular polarity refers to the distribution of electrical charge over the atoms in a molecule, resulting in a molecule having a positive and a negative end.

Front

What is a dipole moment?

Back

A dipole moment is a measure of the separation of positive and negative charges in a molecule, indicating its polarity.

Front

How does electronegativity affect molecular polarity?

Back

Electronegativity differences between atoms in a bond can lead to unequal sharing of electrons, creating polar bonds.

Front

What is a nonpolar molecule?

Back

A nonpolar molecule is one where the electron distribution is equal, resulting in no net dipole moment.

Front

Give an example of a polar molecule.

Back

Water (H2O) is a polar molecule due to its bent shape and the difference in electronegativity between hydrogen and oxygen.