Question 5 An old cooling tower is being demolished at a gas processing plant. W
Question Description
Question 5
An old cooling tower is being demolished at a gas processing plant. Which of the following statements would be FALSE?
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Cr+6 can be found in the cooling tower debris. |
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Workers could be exposed to Cr+6 during demolition if not wearing the appropriate PPE. |
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Cr+6 will unlikely be found in subsurface soil. |
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Exposure to Cr+6 can be by inhalation or ingestion. |
Question 6
Shipping bales of unprocessed cotton alongside a boxcar containing concentrated perchloric acid is potentially hazardous since 60 to 72.5% perchloric acid is an NFPA __________ oxidizer that causes a severe increase in the burning rate of the cotton.
Question 7
The tarnishing of silver is an example of a __________ reaction.
Question 8
The components of ordinary gunpowder are elemental sulfur, charcoal, and potassium nitrate. When gunpowder explodes, these components react as follows:
3S8(s) + 16C(s) + 32KNO3(s)
Sulfur Carbon Potassium nitrate
16K2O(s) + 16CO2(g) + 16N2(g) + 24SO2(g)
Potassium oxide Carbon dioxide Nitrogen Sulfur dioxide
For this redox reaction, the reducing agents are __________ and __________.4 points
Question 9
A dilute solution of __________ is effective in treating athlete’s foot because of its oxidizing capabilities.
Question 10
Following Hurricane Katrina in 2005, what oxidizer did cleanup crews use to eradicate the mold that grew in homes __________?
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