Matter and Energy Review

This is the term for when multiple atoms bond together.

True or false: carbon atoms can become hydrogen atoms during a biological reaction.

• True

• False

Answer explanation

Carbon will always stay as carbon. Elements cannot change into other elements during these chemical reactions.

Atoms & Molecules: True or false: atoms can be destroyed during a biological reaction

• True

• False

Answer explanation

Atoms cannot be destroyed even during a reaction. They may reorganize to form a new molecule but they do not disappear or appear from nothing.

True or false: atoms can become energy.

• True

• False

Answer explanation

Atoms are forever; they cannot be turned into energy during a biological process.

Molecules can store energy.

• True

• False

Answer explanation

• The bonds of molecules that hold atoms together are a form of chemical energy. 

The attraction between two atoms in a molecule is called...

True or false - carbon dioxide contains high energy bonds

• True

• False

Answer explanation

High energy bonds are found between Carbon and Carbon atoms or Carbon and Hydrgoen atoms

Chemical bonds can be turned into heat and light energy.

• True

• False

Answer explanation

The High Energy Bonds of ethanol are transformed into heat and light during combustion. 

• This is the term for any gas, liquid, or solid that is made of atoms, has mass, and takes up space.

This is the term for anything that changes matter and is not made of atoms nor has mass.