Unit 3 - AP Chemistry Review

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What is the structure of silicon dioxide?

Back

Silicon dioxide (SiO2) has a repeating network of covalent bonds, forming a three-dimensional lattice.

Front

What type of bonding occurs in water (H2O)?

Back

Water molecules exhibit polar covalent bonding due to the difference in electronegativity between hydrogen and oxygen.

Front

What is molecular geometry?

Back

Molecular geometry refers to the three-dimensional arrangement of atoms in a molecule.

Front

What is the molecular geometry of a tetrahedral molecule?

Back

In a tetrahedral geometry, a central atom is bonded to four other atoms, with bond angles of approximately 109.5 degrees.

Front

What factors influence lattice energy?

Back

Lattice energy is influenced by the charge of the ions and the distance between them; higher charges and shorter distances result in higher lattice energy.

Front

Which compound has the highest lattice energy: LiF, MgCl2, CaBr2, or C2H6?

Back

MgCl2 has the highest lattice energy due to the higher charge of the magnesium ion compared to lithium.

Front

What is an ionic bond?

Back

An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions.

Front

What is a polar covalent bond?

Back

A polar covalent bond is a type of covalent bond where the electrons are shared unequally between two atoms, resulting in a dipole moment.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons.