Air pollution is a recent phenomenon that did not occur until coal burning became common during the Industrial Revolution.
Answer the following statement true (T) or false (F)
False
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What element is behaves as the oxidizing agent in the following equation and what element behaves as the reducing agent? Sn2+ + 2 Ag ? Sn + 2 Ag?
A. The tin ion, Sn2+, is the oxidizing agent, while silver, Ag, is the reducing agent. B. The tin, Sn, is the reducing agent, while silver ion, Ag?, is the oxidizing agent. C. The tin ion, Sn2+, is the reducing agent, while silver, Ag, is the oxidizing agent. D. The tin, Sn, is the oxidizing agent, while silver ion, Ag?, is the reducing agent.
The dark igneous features shown in this photograph are
A) dikes.
B) sills.
C) volcanic necks.
D) batholiths.
The main type of rocks in the Peninsular Ranges of Southern California and Mexico is
A. flat-lying sedimentary rocks. B. granite and metamorphic rocks that formed at depth. C. unconsolidated sand and gravel. D. volcanic rocks erupted from a large volcano.
Which of the following hydrolyzes proteins only on the amino side of tryptophan, phenylalanine and tyrosine?
A) carboxypeptidase B) chymotrypsin C) trypsin D) none of these