Unit 7 (Bonding & IMFs) Review

Front

What is the strongest intermolecular force present between HCl molecules?

Back

Dipole-dipole attractions are the strongest intermolecular forces in HCl due to its polar nature.

Front

How many total valence electrons are in the polyatomic ion ammonium, NH4+?

Back

Ammonium (NH4+) has a total of 8 valence electrons.

Front

How many total valence electrons are in the polyatomic ion sulfate, SO4^2-?

Back

Sulfate (SO4^2-) has a total of 32 valence electrons.

Front

Is the molecule HCl polar or non-polar?

Back

HCl is a polar molecule due to the difference in electronegativity between hydrogen and chlorine.

Front

A covalent bond is a _________________ of electrons between atoms.

Back

A covalent bond is a sharing of electrons between atoms.

Front

What type of bond is formed when electrons are transferred from one atom to another?

Back

Ionic bond is formed when electrons are completely transferred from one atom to another.

Front

What is the definition of electronegativity?

Back

Electronegativity is the ability of an atom to attract electrons in a chemical bond.

Front

What is the molecular geometry of water (H2O)?

Back

The molecular geometry of water (H2O) is bent due to the two lone pairs on the oxygen atom.

Front

What is the difference between polar and non-polar molecules?

Back

Polar molecules have a net dipole moment due to unequal sharing of electrons, while non-polar molecules have no net dipole moment.

Front

What are London dispersion forces?

Back

London dispersion forces are weak intermolecular forces that arise from temporary dipoles in molecules.