Water, pH and Macromolecules
The effectiveness or capacity of a buffer solution can be affected by

concentration of the conjugate base to the weak acid
molar concentration of the buffer components
temperature of buffer components
both (a) and (b)

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Water, pH and Macromolecules
Which of the following statements about covalently bonded molecules is false?

The chemical bonds that hold the molecule together are relatively strong
Such molecules often result from the interaction of ionized atoms
Noncovalent bonds may also be present, especially if the molecule is large
Electrons are shared between the atoms that make up the molecule

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