Chloroprene, which is the monomer used to make neoprene rubber, is one of several monochloro derivatives of 1,3-butadiene. How many monochloro derivatives of 1,3-butadiene are there? (Be sure to account for cis-trans isomers.)
A) 2
B) 3
C) 4
D) 5
B
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In a Hadley cell,
A) warm air rises and cool air falls. B) cool air rises and warm air falls. C) warm water rises and cool water falls. D) cool water rises and warm water falls.
Temperatures become more variable and precipitation decreases as one travels from west to east from Europe into Asia. This is best explained by
A. prevailing westerlies and the orientation of mountain chains. B. the moist eastern side of the subtropical high. C. monsoonal winds bringing relatively warm moist winds in the winter. D. the moist western side of the subtropical high.
The NFPA recommends color-coding hydrants to indicate _______.
a. the water source b. the most recent flow test c. available flow d. available pressure
________ is the planet that is most like the Earth in diameter and mass.
A. Io B. Saturn C. Uranus D. Mars E. Venus