Water, pH and Macromolecules
Which of the following character does not apply to water?

All three atoms in the water molecule readily form hydrogen bonds
The water molecule readily forms hydrophobic interactions
The covalent bonds in water are highly polarized
The water molecule is asymmetric

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
Hydrogen bonds and hydrophilic interactions are types of

weak chemical bonds that hold together the atoms within a molecule
strong chemical bonds that link together separate molecules
strong chemical bonds that hold together the atoms within a molecule
weak chemical bonds that link together separate molecules

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
Which of the following statements about water is correct?

All of these
Polar substances that can form hydrogen bonds will dissolve in it
It is critical for many of the chemical processes found in living systems
Nonpolar substances like oils are not soluble in it

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
Salt dissolves well in water as water molecules

surround the ions because of their charge but do not form hydrogen bonds
make nonpolar covalent bonds with the positively charged ions only
share electrons with the ions to make polar covalent bonds
form hydrogen bonds with the positively and negatively charged ions

ANSWER DOWNLOAD EXAMIANS APP