40. What is the oxidation number of N in N₂O? A) -2 B) -1 C) 0 D) +1 E) +2 41. Groundwater redox reactions often follows the redox ladder depending on electron acceptor's availability. When O₂ is depleted, usually serves as the next electron acceptor in groundwater. A) NO3 B) MnO₂ C) Fe³+ D) SO4²- E) CO₂ 42. Although no free electrons exist in solution, it is useful to define a quantity called electron activity (pe= -log ae-) to show the redox potential of a solution. If pe is low, there is a strong tendency for the solution to electrons. A) donate B) accept C) maintain D) neutralize E) oxidize 43. Which of the following belongs to nonpoint sources of groundwater contamination? A) Storage tank B) Landfill C) Pipeline release D) Industrial facility E) Agricultural runoff 44. Which is NOT an example of organic contaminants in the groundwater? A) Heavy metal B) BTEX C) Acetone D) PAH E) Pesticide
40. What is the oxidation number of N in N₂O? A) -2 B) -1 C) 0 D) +1 E) +2 41. Groundwater redox reactions often follows the redox ladder depending on electron acceptor's availability. When O₂ is depleted, usually serves as the next electron acceptor in groundwater. A) NO3 B) MnO₂ C) Fe³+ D) SO4²- E) CO₂ 42. Although no free electrons exist in solution, it is useful to define a quantity called electron activity (pe= -log ae-) to show the redox potential of a solution. If pe is low, there is a strong tendency for the solution to electrons. A) donate B) accept C) maintain D) neutralize E) oxidize 43. Which of the following belongs to nonpoint sources of groundwater contamination? A) Storage tank B) Landfill C) Pipeline release D) Industrial facility E) Agricultural runoff 44. Which is NOT an example of organic contaminants in the groundwater? A) Heavy metal B) BTEX C) Acetone D) PAH E) Pesticide
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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