What type of transition state is involved during the decarboxylation of b-ketoacids?
A) a 5-membered cyclic system
B) a 6-membered cyclic system
C) an enol
D) none of these
B
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In a large city experiencing urban blight, we would be surprised to find
A) a declining tax base. B) depreciating real estate. C) improving schools. D) increasing crime.
Geothermal heat pump systems can heat and cool homes ____.
A. almost anywhere in the world B. in cold climates only C. in warm climates only D. near hydrothermal reservoirs only E. near plate boundaries only
A(n) ____________________ refers to an area that has recognizably similar internal characteristics that are distinct from those of other areas
Fill in the blank(s) with correct word
About 40% of the earth's land area (not including Antarctica) is protected as nature reserves, parks, or wilderness areas.
Indicate whether the statement is true or false