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Water, pH and Macromolecules

Water, pH and Macromolecules
A Bronsted acid becomes __________ upon losing a proton.

its conjugate acid
a hydronium ion
highly reactive
its conjugate base

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Water, pH and Macromolecules
Molecules in which the atoms are held together by __________ bonds have the strongest chemical linkages.

covalent
noncovalent
ionic
hydrogen

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Water, pH and Macromolecules
The pH of a solution is determined by

environmental effect
concentration of salt
relative concentration of acids and bases
dielectric constant of the medium

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Water, pH and Macromolecules
Which of the following will easily dissolve in a polar solvent?

gasoline (heptanes & octanes)
methane
sodium chloride
argon

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Water, pH and Macromolecules
Most of the important functional groups in biological molecules contain

oxygen and a phosphate
oxygen and/or nitrogen and are polar
oxygen and/or nitrogen and are acidic
nitrogen and a phosphate

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Water, pH and Macromolecules
The strength of an acid depends on

number of double bonds
electronegativity
number of protons released
number of neutrons gain

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