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CHEM 120 Week 8 Exam 3 (Units 5, 6, and 7)
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- Chamberlain College Of Nursing
CHEM 120 Week 8 Exam 3 (Units 5, 6, and 7)
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CHEM 120Test 3: Chapters 9,10,11,15,16
Due: Monday, (Spring Semester)
Exam 3
Total Points: 80
Multiple Choice questions: Q 1-40. Highlight or mark the correct answer. (2 point each)
1. The following is a polymer.
a. Glucose
b. Polysaccharide
c. DNA
d. B & C are true
2. The following is a naturally occurring polymer.
a. Celluloid
b. Silk
c. Plastic
d. A & B
e. All of the above
3. The following is true for Addition polymers.
a. During synthesis, all of the monomers combine with each other
b. During synthesis, only parts of monomers combine with each other
c. H2O is a common byproduct.
d. None of the above are true
4. The following is true for condensation polymers.
a. During synthesis, only parts of monomers combine with each other
b. H2O is a common byproduct of condensation synthesis in a cell.
c. Starch is a condensation polymer
d. All of the above are true
5. The following is always a reactant in hydrolysis reaction in a cell.
a. H2O
b. HCl
c. NH3
d. None of the above
6. Hydrocarbons are made of and
a. C, H
b. C, O
c. C, S
d. C, P
7. As you increase the length of hydrocarbon chain, the molecules becomes more
.
a. Polar
b. Nonpolar
8. Ionizing radiation
1
, CHEM 120
Test 3: Chapters 9,10,11,15,16
Due: Monday, (Spring Semester)
a. causes radioactive acids to form
b. comes from synthetic isotopes only
c. is energetic enough to ionize atoms and molecules
d. can give one superpowers
9. “Free radicals disrupt cellular processes.” This statement is
a. True
b. False
10. Half-life is defined as
a. Emission of beta particles
b. The time it takes for half of the material to undergo decay
c. The time it takes for 1/4 of the material to undergo decay
d. The time it takes for all of the material to undergo decay
e. None of the above
11. “Radiation is used as diagnostic and a therapeutic tool in medicine.” This statement is
a. True
b. False
12. Energy is defined as
a. Ability to do work
b. Ability to transfer heat
c. Both a & b
13. The SI unit of energy is
a. Calorie
b. Joule
c. Watt
d. Kilocalories
14. Exothermic reactions
a. Release heat to the surroundings
b. Absorb heat from the surroundings
15. Reaction of acid with a base results in product formation with increase in temperature.
It is an example of
a. Exothermic reaction
b. Endothermic reaction
16. “The first law of thermodynamics is also a law of conservation of energy.” This statement
is
a. True
b. False
17. An apple hanging on a branch has
a. Kinetic energy
b. Rotational energy
c. Potential energy
d. Force energy
2
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