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

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

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

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

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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 covalent bonds in water are highly polarized
The water molecule readily forms hydrophobic interactions
The water molecule is asymmetric

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