The three domains in which all living things can be categorized are _____________.

During photosynthesis, solar energy is used to convert ___________________ into glucose and oxygen.

Imagine you placed a drop of green food coloring into a beaker of pure water.  You return to the beaker an hour later to discover that the dye molecules are evenly dispersed throughout the container. This type of movement is called ___________.

The active site of an enzyme ___________________.

True or False: According to the octet rule, atoms are least stable with 8 electrons in their valence orbital. 

Oven cleaner has a pH of about 13. This means that it has fewer hydrogen ions than the same amount of water and would therefore, be considered a(n) __________.

Proteins are polymers of ______________. 

True or False: According to the octet rule, atoms are most stable with 4 electrons in their valence orbital. 

True or False: The number of neutrons determines the element.

True or False: Hydrophobic molecules dissolve in water.