FALL FINAL REVIEW - HONORS CHEMISTRY - HHS

Front

What is Hund's Rule?

Back

Hund's Rule states that orbitals of equal energy are occupied one at a time before any orbital is doubly occupied.

Front

What is the strongest type of intermolecular force present in HF?

Back

The strongest type of intermolecular force in HF is hydrogen bonding (H-bond).

Front

How many valence electrons does aluminum have?

Back

Aluminum has 3 valence electrons.

Front

What is NOT a sign that a chemical change has occurred?

Back

Mixing two substances is NOT a sign of a chemical change.

Front

Who described the existence of the neutron?

Back

James Chadwick described the existence of the neutron.

Front

What is the Pauli Exclusion Principle?

Back

The Pauli Exclusion Principle states that no two electrons in an atom can have the same set of four quantum numbers.

Front

What is the Aufbau Principle?

Back

The Aufbau Principle states that electrons occupy the lowest energy orbitals first before filling higher energy levels.

Front

What are dipole-dipole forces?

Back

Dipole-dipole forces are intermolecular forces that occur between polar molecules due to the attraction of positive and negative ends.

Front

What is a precipitate?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What is the definition of a chemical change?

Back

A chemical change is a process where one or more substances are transformed into different substances with new properties.