Front

What is a polar covalent bond?

Back

A type of chemical bond where two atoms share electrons unequally, resulting in a molecule with a partial positive charge on one end and a partial negative charge on the other.

Front

What is a non-polar covalent bond?

Back

A type of chemical bond where two atoms share electrons equally, resulting in no charge separation within the molecule.

Front

What determines if a molecule is polar or non-polar?

Back

The shape of the molecule and the difference in electronegativity between the atoms involved in the bond.

Front

What is electronegativity?

Back

A measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What are the characteristics of polar molecules?

Back

Polar molecules have a net dipole moment due to the presence of polar bonds and an asymmetrical shape.

Front

What are the characteristics of non-polar molecules?

Back

Non-polar molecules have no net dipole moment, often due to symmetrical shapes and equal sharing of electrons.

Front

Give an example of a polar molecule.

Back

Water (H2O) is a common example of a polar molecule.

Front

Give an example of a non-polar molecule.

Back

Methane (CH4) is a common example of a non-polar molecule.

Front

What is the significance of polarity in biological systems?

Back

Polarity affects solubility, molecular interactions, and the structure of biomolecules, influencing biological functions.

Front

What type of atoms typically form covalent bonds?

Back

Covalent bonds are typically formed between two nonmetals.