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An anesthetic used by dentists

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Reference no: EM13771541

1. EPA uses what regulation to ban the use of compounds containing hexavalent chromium in cooling towers for air conditioners?
Answer

TSCA

RCRA

EPCRA

FIFRA

Question 2

What two chemicals can be used medicinally to cure dermatitis (from a bacterial/fungal origin) and eliminate or reduce effluent gases from many industrial sources?
Answer

Metallic nitrates and nitrites

Metallic sodium permanganate and potassium permanganate

Sodium hydroxide and hypochlorous acid

Phenol and phosgene

Question 3

Which of the following statements regarding oxidation numbers is FALSE?
Answer

The oxidation number of a monoatomic ion is the same as its ionic charge, such that the oxidation number of calcium is +2.

Each oxygen in KMnO4 has an oxidation number of -2 and the oxidation number of K is +1; therefore, the oxidation number on Mn in this compound is +7.

The oxidation number of each atom in an element is zero, such that the oxidation number of Cl2 is +2.

H2S contains sulfur which as an oxidation number of -2.

Question 4

What type of chlorinated organic compounds has largely displaced the use of calcium hypochlorite in home swimming pool sanitation products?
Answer

Bleach

Di- and tri-chloroisocyanuric acids

Chlorine dioxide

Ozone

Question 5

Which of the following statements concerning bulk storage of ammonium nitrate is FALSE?
Answer

The height of the storage pile should be no higher than 36" from the roof or the supporting and spreader beams overhead.

Storage piles should be sized and arranged so that all material in the pile is moved out periodically.

Ammonium nitrate should not be accepted for storage when the temperature of the product exceeds 100 degrees Fahrenheit.

Blasting agents should never be stored in the same building.

Question 6

Oxidizers react with all of the following EXCEPT:
Answer

fuels, oils, and sawdust.

coke and water.

lubricants and wood shavings.

vegetable fats and coal.

Question 7
1.
Calcium hypochlorite is known by what name when it is used as a disinfectant in swimming pools?
Answer

CHC

HTH

Multi-chlor

Clorox

Question 8

What two chemicals reacted violently to destroy the S.S. Grandcamp and kill 600 people off the coast of Texas City, Texas?
Answer

Fuel oil and ammonium nitrate

Chromium oxychloride and potassium dichromate

Phenol and phosgene

Chlorine dioxide and sodium perchlorate

Question 9

What material can be used as an anesthetic by dentists and as a component in explosives?
Answer

Trichloroisocyanuric acid

Sodium dioxide

Potassium chloride

Ammonium nitrate

Question 10

Potassium dichromate is a strong oxidizer and therefore incompatible with which of the following substances?
Answer

Dilute acetic acid

Water and sodium hydroxide

Potassium hydroxide and water

Hydrochloric acid

Reference no: EM13771541

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