Chem Unit 6 Review

Front

What is a sigma bond?

Back

A sigma bond is a type of covalent bond formed by the direct overlap of atomic orbitals, allowing for the sharing of two electrons between atoms.

Front

What is a pi bond?

Back

A pi bond is a type of covalent bond formed by the sideways overlap of p orbitals, occurring in addition to a sigma bond between two atoms.

Front

How do you determine the number of sigma and pi bonds in a molecule?

Back

Count the single bonds as sigma bonds. For double bonds, count one sigma and one pi bond; for triple bonds, count one sigma and two pi bonds.

Front

What is the Lewis dot structure?

Back

The Lewis dot structure is a diagram that represents the valence electrons of atoms within a molecule, showing how they are arranged and bonded.

Front

How do you draw the Lewis dot structure for a molecule?

Back

Identify the total number of valence electrons, arrange the atoms, and distribute the electrons to satisfy the octet rule.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Front

What is the formula for aluminum chloride?

Back

The correct formula for aluminum chloride is AlCl3.

Front

How do you calculate the molar mass of a compound?

Back

To calculate the molar mass, sum the atomic masses of all atoms in the compound's formula.

Front

What is the molar mass of aluminum (Al)?

Back

The molar mass of aluminum is approximately 26.98 g/mol.

Front

What is the molar mass of chlorine (Cl)?

Back

The molar mass of chlorine is approximately 35.45 g/mol.