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CHMM EXAM WITH COMPLETE SOLUTIONS 100% CORRECT

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CHMM EXAM WITH COMPLETE SOLUTIONS 100% CORRECT

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CHMM
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CHMM

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CHMM EXAM WITH COMPLETE SOLUTIONS 100%
CORRECT 2026\2027

(COMBINED SETS) e.




-CHMM Exam Study Guide e. e. e.




-CHMM Practice Exam e. e.




CHMM Practice Exam e. e.




When polonium (atomic mass 210 & atomic number 84) undergoes alpha decay,
e. e. e. e. e. e. e. e. e. e. e.


which of the following is a product of the decay?
e. e. e. e. e. e. e. e. e. e.




a. Bismuth (atomic mass 209 & atomic number 83)
e. e. e. e. e. e. e.




b. Lead (atomic mass 206 & atomic number 82)
e. e. e. e. e. e. e.




c. Thallium (atomic mass 204 & atomic number 81)
e. e. e. e. e. e. e.




d. Mercury (atomic mass 201 & atomic number 80) - CORRECT ANSWER b.
e. e. e. e. e. e. e. e. e. e. e.


Lead (atomic mass 206 & atomic number 82)
e. e. e. e. e. e. e. e.




Atomic Mass is: e. e.




a. the number of protons in the nucleus
e. e. e. e. e. e.




b. the total number of protons & neutrons in the nucleus
e. e. e. e. e. e. e. e. e.




c. a nuclear particle that has an atomic weight of one and is electrically neutral
e. e. e. e. e. e. e. e. e. e. e. e. e.




d. a particle that contains all the positive charge and essentially all the weight of
e. e. e. e. e. e. e. e. e. e. e. e. e.


the atom - CORRECT ANSWER b. the total number of protons & neutrons
e. e. e. e. e. e . e. e. e. e. e. e. e.


in the nucleus
e. e. e.

,Which of the following is not a chemical asphyxiant?
e. e. e. e. e. e. e. e.




a. carbon monoxide e.




b. carbon dioxide e.




c. hydrogen sulfide e.




d. hydrogen cyanide - CORRECT ANSWER c. hydrogen sulfide e. e. e. e. e. e. e.




Which of the following displaces oxygen but does not actually interfere with
e. e. e. e. e. e. e. e. e. e. e.




e. the human body's ability to use oxygen?
e. e. e. e. e. e.




a. carbon dioxide e.




b. nitrogen

c. noble gases e.




d. all of the above - CORRECT ANSWER d. all of the above
e. e. e. e. e . e. e . e. e. e. e.




Which of the following statements about oxidation is always true? a. oxygen must
e. e. e. e. e. e. e. e. e. e. e. e.


be a chemical reactant for an oxidation reaction to occur b. oxidation is a
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violent reaction that always produces heat and light c. oxidation always results in
e. e. e. e. e. e. e. e. e. e. e. e. e.


at least one electron being transferred from one atom to another
e. e. e. e. e. e. e. e. e. e. e.




d. the valence of the atom is reduced occurs when it gives up an oxidation electron -
e. e. e. e. e. e. e. e. e. e. e. e. e. e. e. e.


CORRECT ANSWER c. oxidation always results in at least one electron being
e. e. e. e. e. e. e. e. e. e. e. e.


transferred from one atom to another
e. e. e. e. e. e.




Which of the following seven steps in the preparation for transportation of
e. e. e. e. e. e. e. e. e. e. e.


hazardous materials is listed below are in proper order?
e. e. e. e. e. e. e. e. e.




a. proper shipping name, classify, package, mark, label, paperwork, placard
e. e. e. e. e. e. e. e.

,b. classify, proper shipping name, package, mark, label, paperwork, placard
e. e. e. e. e. e. e. e.




c. package, classify, proper shipping name, mark, label, paperwork, placard
e. e. e. e. e. e. e. e.




d. package, mark, label, classify, proper shipping name, paperwork, placard
e. e. e. e. e. e. e. e.


- CORRECT ANSWER b. classify, proper shipping name, package, mark,
e. e. e. e. e. e. e. e. e. e.


label, paperwork, placard
e. e. e.




Boiling Point is the temperature at which:
e. e. e. e. e. e.




a. the vapor pressure of a solid just equals atmospheric pressure
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b. greater than atmospheric pressure in the case of the vapor pressure of a liquid
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c. less than atmospheric pressure in the case of the vapor pressure of a liquid
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d. vapor pressure of a liquid just equals atmospheric pressure - CORRECT ANSWER
e. e. e. e. e. e. e. e. e. e. e.


d. the vapor pressure of a liquid just equals atmospheric pressure
e. e. e. e. e. e. e. e. e. e. e.




Flash point is the :
e. e. e. e.




a. maximum temperature of a liquid at which it give off vapors sufficient to form
e. e. e. e. e. e. e. e. e. e. e. e. e. e.


an ignitable mixture with air b. maximum temperature of a liquid at which it
e. e. e. e. e. e. e. e. e. e. e. e. e. e.


gives off vapors sufficient to form an ignitable mixture with water c. minimum
e. e. e. e. e. e. e. e. e. e. e. e. e.


temperature of a liquid at which it gives off vapors sufficient to form an
e. e. e. e. e. e. e. e. e. e. e. e. e. e.


ignitable mixture with air
e. e. e. e.




d. minimum temperature of a liquid at which it gives off vapors sufficient to form an
e. e. e. e. e. e. e. e. e. e. e. e. e. e. e.


ignitable mixture with water - CORRECT ANSWER c. minimum temperature of
e. e. e. e. e. e. e. e . e. e. e.


a liquid at which it gives off vapors sufficient to form an ignitable mixture with
e. e. e. e. e. e. e. e. e. e. e. e. e. e. e.


air
e.




BLEVE is the acronym for:
e. e. e. e.




a. Boiling Liquids Evaporate Very Expensively
e. e. e. e.




b. Boiling Liquids Erode Very Efficiently
e. e. e. e.




c. Boiling Liquids End Vapor Explosions
e. e. e. e.

, d. Boiling Liquid Expanding Vapor Explosion - CORRECT ANSWER d. Boiling
e. e. e. e. e. e. e. e. e.


Liquid Expanding Vapor Explosion
e. e. e. e.




Cobalt-60 has a 5 year half life. If the initial activity of a Cobalt-60 source is 20 mCi,
e. e. e. e. e. e. e. e. e. e. e. e. e. e. e. e. e.


what is the activity after 10 years in mCi?
e. e. e. e. e. e. e. e. e.




a. 5

b. 0

c. 2

d. 10 - CORRECT ANSWER a. 5
e. e . e. e . e.




The exposure rate at a distance of 1 foot from a radioactive source is 20 rnR/hr.
e. e. e. e. e. e. e. e. e. e. e. e. e. e. e.


What is the exposure rate in mR/hr. at 10 feet?
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a. 0.1

b. 0.2

c. 0.3

d. 0.4 - CORRECT ANSWER b. 0.2
e. e. e. e . e.




Which of the following is not regulated by EPA as an environmentally toxic
e. e. e. e. e. e. e. e. e. e. e. e.




metal? a. arsenic
e. e. e.




b. lead

c. cadmium

d. iron - CORRECT ANSWER d. iron
e. e. e. e . e.

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