Practice Test | Chapter 5 - The Structure of Matter

Front

What are proteins made of?

Back

Proteins are polymers made of amino acids.

Front

What are compounds that have repeating subunits called?

Back

Polymers.

Front

What model can help visualize a molecule's three-dimensional shape?

Back

A ball-and-stick model.

Front

What is the name of the covalent compound SO₂?

Back

Sulfur dioxide.

Front

How many atoms of oxygen are in one molecule of carbon dioxide (CO₂)?

Back

Two atoms of oxygen.

Front

What is the basic building block of proteins?

Back

Amino acids.

Front

What type of bond is formed between amino acids in a protein?

Back

Covalent bonds (specifically peptide bonds).

Front

What is the significance of the ball-and-stick model in chemistry?

Back

It helps visualize the three-dimensional arrangement of atoms in a molecule.

Front

What is the general formula for a covalent compound?

Back

It consists of the symbols of the elements involved, with subscripts indicating the number of atoms.

Front

What is the difference between a molecule and a compound?

Back

A molecule is two or more atoms bonded together, while a compound is a type of molecule that contains at least two different elements.