Chem 2, Semester 1 Review

Front

What happens to Z_eff as you move across a row (L to R) on the periodic table?

Back

Z_eff increases.

Front

How are pressure (P) and volume (V) related in gas laws?

Back

Pressure and volume are inversely related.

Front

What is the molecular geometry of PCl₅?

Back

The molecular geometry of PCl₅ is trigonal bipyramidal.

Front

What type of change separates a compound into its elements?

Back

A chemical change separates a compound into elements.

Front

What is the shape of a molecule with a trigonal pyramidal geometry?

Back

The shape is trigonal pyramidal.

Front

Define effective nuclear charge (Z_eff).

Back

Effective nuclear charge (Z_eff) is the net positive charge experienced by an electron in a multi-electron atom.

Front

What is the relationship between temperature and volume in Charles's Law?

Back

Temperature and volume are directly related in Charles's Law.

Front

What is the shape of a molecule with four bonding pairs and one lone pair?

Back

The shape is trigonal bipyramidal.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not alter the chemical composition, while a chemical change does.

Front

What is the molecular geometry of a molecule with two bonding pairs and two lone pairs?

Back

The molecular geometry is bent.