Which reagents/catalysts would be needed to convert benzene to p-bromonitrobenzene?
A) Br2/FeBr3
B) HNO3/H2SO4/Heat
C) NaOH
D) H2SO4/Heat
E) both a and b
E
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A program undertaken by the U.S. Forest Service and the National Advertising Council that has helped humans and saved forests is
a. the prescribed burn program b. the Smokey Bear campaign c. the program to restore watersheds below clear cuts d. the program to remove dams e. the program to thin trees in old growth forests
Which of the following features is associated with the global distribution of precipitation?
A. distribution of mountain ranges and high plateaus B. longitude C. albedo of the land surface D. deep water ocean circulation
A ____________________ is an element or inorganic compound that occurs naturally in the earth's crust.
Fill in the blank(s) with the appropriate word(s).
Seawater is ____ even though dissolved CO2 forms into a carbonic acid when combined with water
A) ?neutral with a pH of 7 B) ?a strong acid C) ?slightly acidic D) ?slightly alkaline