IMFs, Polarity & Molecular Geometry Practice (H)

Front

What are intermolecular forces (IMFs)?

Back

Intermolecular forces (IMFs) are forces of attraction or repulsion between neighboring particles (molecules, atoms, or ions). They play a crucial role in determining the physical properties of substances.

Front

What is polarity in molecules?

Back

Polarity refers to the distribution of electrical charge over the atoms joined by the bond. A polar molecule has a partial positive charge on one end and a partial negative charge on the other due to differences in electronegativity.

Front

What type of bond is formed between two nonmetals?

Back

A covalent bond is formed between two nonmetals.

Front

Can H2S molecules engage in hydrogen bonding?

Back

No, H2S molecules cannot engage in hydrogen bonding because they do not have a highly electronegative atom (like N, O, or F) bonded to hydrogen.

Front

What is the molecular geometry of CCl4?

Back

The molecular geometry of CCl4 (carbon tetrachloride) is tetrahedral.

Front

What is the shape of H2S?

Back

The shape of H2S (hydrogen sulfide) is bent.

Front

What determines the shape of a molecule?

Back

The shape of a molecule is determined by the arrangement of its atoms and the presence of lone pairs of electrons, which can repel bonding pairs.

Front

What is a polar covalent bond?

Back

A polar covalent bond is a type of bond where two atoms share electrons unequally, resulting in a molecule with a slight electrical dipole moment.

Front

What is the difference between polar and nonpolar molecules?

Back

Polar molecules have a net dipole moment due to the presence of polar bonds and an asymmetrical shape, while nonpolar molecules have no net dipole moment due to symmetrical shape or equal sharing of electrons.

Front

What is the VSEPR theory?

Back

The Valence Shell Electron Pair Repulsion (VSEPR) theory is a model used to predict the geometry of individual molecules based on the repulsion between electron pairs in the valence shell.