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

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

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

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

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