Most of our table salt comes from ________
A) salt obtained by evaporating seawater in dry climates
B) salt taken from mines
C) China
D) combining the metal sodium and the nonmetal chlorine gas in a chemical reaction vessel to make pure NaCl
A
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On a dip-slip fault, movement of walls is perpendicular to the dip line.
a. true b. false
Of considerable concern to an acoustical engineer designing, a music hall is
A. modulation. B. reverberations. C. resonance. D. forced vibrations.
A student named a particular compound 2-ethyl-3-methyl-2-butene. Assuming that the student's choice actually corresponded to the correct distribution of the double bond and the substituents, what is the correct IUPAC name for this compound?
A) 2-ethyl-3-methyl-2-butene B) 3,4-dimethyl-3-pentene C) 2,3-dimethyl-2-pentene D) 2,3-dimethyl-1-pentene
Which area is NOT a major food exporting region?
A) Brazil and Argentina B) Southeast Asia C) North America D) Mexico E) South Pacific