Water, pH and Macromolecules
The reactions of molecules

require an enzyme in all cases
All of these
are independent of the functional groups
are the reactions of the functional groups

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
Which of the following statements about covalently bonded molecules is false?

Noncovalent bonds may also be present, especially if the molecule is large
Electrons are shared between the atoms that make up the molecule
The chemical bonds that hold the molecule together are relatively strong
Such molecules often result from the interaction of ionized atoms

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
The main difference between an acid and a base is that

acids donate hydrogen ions in water while bases accept hydrogen ions
bases are polar molecules and acids are not
bases donate hydrogen ions in water while acids accept hydrogen ions
acids are polar molecules and bases are not

ANSWER DOWNLOAD EXAMIANS APP