Rank the following groups in order of increasing activating power in electrophilic aromatic substitution reactions:
-OCH3, -OCOCH2CH3, -CH2CH3, -Br.

a) -OCH3 ‹ -OCOCH2CH3 ‹ -CH2CH3 ‹ -Br.
b) -Br ‹ -OCOCH2CH3 ‹ -CH2CH3 ‹ -OCH3
c) -OCOCH2CH3 ‹ -Br ‹ -OCH3 ‹ -CH2CH3
d) -Br ‹ -CH2CH3 ‹ -OCOCH2CH3 ‹ -OCH3
e) -OCOCH2CH3 ‹ -OCH3 ‹ -Br ‹ -CH2CH3

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa