Chemistry Final Exam

Front

What is energy?

Back

The ability to do work.

Front

Does the absolute magnitude of a star depend on its distance from Earth?

Back

False.

Front

What do covalent compounds do?

Back

Share electrons.

Front

What happens to the concentration of H+ as pH decreases?

Back

The concentration of H+ increases.

Front

What is something made up of only one kind of atom called?

Back

An element.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is a compound?

Back

A substance formed when two or more different elements are chemically bonded.

Front

What is the pH scale used for?

Back

To measure the acidity or basicity of a solution.

Front

What is an ion?

Back

An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

Front

What is the difference between an ionic bond and a covalent bond?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.