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Water, pH and Macromolecules

Water, pH and Macromolecules
Who discovered and described the blood groups (ABO) classification?

Theodor Kocher
Karl Landsteiner
Otto Warburg
Karl Hooper

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Water, pH and Macromolecules
The reason that fats contain more energy than simple sugars, is fats have many more

hydrogen atoms
carbon atoms
covalent bonds
hydrogen bonds

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Water, pH and Macromolecules
Which of the following organic groups are found in naturally occuring amino acids?

All of these
Imidazole
Guanidinium ion
Indole

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

noncovalent
covalent
hydrogen
ionic

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Water, pH and Macromolecules
The dissociation constant of H2O at 25° C is

10-7 M
107 M
1014 M
10-14 M

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Water, pH and Macromolecules
H2O and CH4 are both examples of

acids
ions
molecules
none of these

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