Chem Chap 7 Review

what determines the polarity of a bond?

• the difference in electronegativity between the two atoms

• the difference in the number of valence electrons between the two atoms

• the difference in electron affinity between the two atoms

A central atom surrounding by 4 atoms bonded to it will create what shape?

• pyramidal

• tetrahedral

• triangular planar

• rectangular

Which of the following molecules would form a linear-shaped molecule

• H₂O

• CH₄

• HCN

• NH₃

How do chemists represent the partial charges of a polar molecule

• with positive or negative electronegativities

the vector sum of all bond polarities that exist in a molecule

• polar moment

• dipole moment

• electronegativity

The process by which new kinds of orbitals of equal energy are formed from a combination of orbitals of different energies is known as

• hybridization

• anti-bonding orbitals

• pro-bonding orbitals

• Polar covalent orbitals

The assumption that molecular shapes are largely determined by the repulsion of regions of electron concentration is known as the _____ theory

• VESPER

• VESPR

• VSEPR

• Hybridization

The theory that states that covalent bonds are formed when orbitals of different atoms overlap in order to is called _____ theory

• Molecular orbital

• Covalent bond

• hybridization

• valence bond

Which of the following molecule is pyramidal

• NH₃

• CH₃OH

• SCl₂

• HCl

Which of the following molecules would be trigonal planar in shape?

• CH₂O

• OCl₂

• HCN

• CF₂Cl₂