AP Chemistry - Unit 2 Review

Front

What is the molecular geometry of phosphorus pentachloride (PCl5)?

Back

Trigonal bipyramidal.

Front

Which molecule is nonpolar: CH3F, CF4, or HF?

Back

CF4 is nonpolar.

Front

What type of alloy is bronze?

Back

Bronze is a substitutional alloy.

Front

What is the bond hybridization of the central carbon in dichloromethane (CH2Cl2)?

Back

The bond hybridization is sp^3.

Front

How many pi bonds are present in capsaicin?

Back

There are 5 pi bonds in capsaicin.

Front

Define molecular geometry.

Back

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

Front

What is the difference between polar and nonpolar molecules?

Back

Polar molecules have a net dipole moment due to unequal sharing of electrons, while nonpolar molecules have no net dipole moment.

Front

Explain the concept of hybridization in chemistry.

Back

Hybridization is the mixing of atomic orbitals to form new hybrid orbitals suitable for the pairing of electrons to form chemical bonds.

Front

What is a substitutional alloy?

Back

A substitutional alloy is formed when some of the atoms in the original metal are replaced by other atoms of similar size.

Front

What is the significance of pi bonds in organic molecules?

Back

Pi bonds are important for the reactivity and stability of organic molecules, influencing their chemical properties.