Water, pH and Macromolecules
The elements oxygen, nitrogen, and carbon

contain protons and neutrons in their atomic nuclei
All of these
can all form covalent bonds with other elements
are common elements in the molecules that make up living organisms

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

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

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

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
acids donate hydrogen ions in water while bases accept hydrogen ions

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