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

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

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

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

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

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