Molecular Polarity

Front

What is molecular polarity?

Back

Molecular polarity refers to the distribution of electrical charge over the atoms in a molecule, determining whether it has a positive or negative end.

Front

How are electrons shared in a polar covalent bond?

Back

Electrons are shared unevenly between the atoms.

Front

How are electrons shared in a nonpolar covalent bond?

Back

Electrons are shared evenly between the atoms.

Front

What determines the polarity of a molecule?

Back

The difference in electronegativity between the atoms involved in the bond.

Front

What is electronegativity?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons.

Front

In a polar covalent bond, where do the electrons tend to gather?

Back

Electrons tend to gather around the atom with the greatest electronegativity.

Front

What type of molecule is O2 and why?

Back

O2 is a nonpolar molecule because the electrons are shared equally between the two oxygen atoms.

Front

Which molecule is more polar: H2O or H2S?

Back

H2O is more polar due to the higher electronegativity difference between hydrogen and oxygen compared to hydrogen and sulfur.

Front

What is the significance of molecular polarity in chemistry?

Back

Molecular polarity affects physical properties such as boiling point, solubility, and reactivity.

Front

What is a dipole moment?

Back

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