U7 CP Chem Covalent Bonding, Lewis, VSEPR, Polarity, IMFs

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed when two atoms share one or more pairs of electrons.

Front

What is the VSEPR theory?

Back

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

Front

Define polarity in chemistry.

Back

Polarity refers to the distribution of electrical charge over the atoms joined by the bond. A polar bond occurs when there is a significant difference in electronegativity between the two atoms.

Front

What are intermolecular forces (IMFs)?

Back

Intermolecular forces 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 the molecular formula of a compound?

Back

The molecular formula of a compound shows the number and type of atoms present in a molecule, represented by chemical symbols and subscripts.

Front

What is resonance in chemistry?

Back

Resonance is a concept used to describe the delocalization of electrons in molecules where the bonding cannot be expressed by a single Lewis structure.

Front

What is the significance of formal charge in Lewis structures?

Back

Formal charge helps to determine the most stable Lewis structure for a molecule by indicating the distribution of electrons among atoms.

Front

How do you determine if a molecule is polar or nonpolar?

Back

A molecule is polar if it has a net dipole moment due to the arrangement of polar bonds and the shape of the molecule. Nonpolar molecules have an even distribution of charge.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, resulting in charged ions, while covalent bonds involve the sharing of electrons between atoms.

Front

What is the molecular geometry of water (H2O)?

Back

The molecular geometry of water is bent due to the two lone pairs of electrons on the oxygen atom, which repel the hydrogen atoms.