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CB > D1 Trivia > Flashcards

D1 Trivia Flashcards

1
Q

Cobalt-60

A

cancer therapy

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2
Q

Thallium-201

A

heart scan

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3
Q

Tritium

A

measure water content in body

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4
Q

Mercury-197

A

kidney scan

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5
Q

Calcium-48 and Nickel-64

A
  • bombarded with lead isotopes
  • to produce superheavy elements
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6
Q

NaI w/ Th(II)I2

A

used in scintillation counter to count gamma particles

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7
Q

Chromium-51

A

diagnose albinism

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8
Q

Gallium-67

A

whole body scan for tumors

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9
Q

Selenium-75

A

pancreas scan

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10
Q

Krypton-81

A

lung ventilation

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11
Q

Iodine-131

A

thyroid cancer/malfunctions

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12
Q

Strontium-90

A

radioactive tracer for eye treatments

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13
Q

oil of wintergreen

A

methyl salicylate

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14
Q

ripening fruits

A

ethylene

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15
Q

alar daminozide

A
  • C6 H12 N2 O3
  • plant growth regulator
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16
Q

The person’s sense of smell and taste depend on specific biochemic receptors present in a person’s nose and mouth. In 2004, a Nobel Prize was given to the researchers who established this fact and identified the the type of organic compound associated with the sense of smell and taste. The chemical identified was;

A

rhodopsin

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17
Q

The distance of the Earth to the nearest
normal galaxy is calculated to be:

A

2x10^22 m
Andromeda Galaxy

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18
Q

Which type of fatty acid should people avoid ingesting, saturated or unsaturated and why?

A

Saturated, because the risk of cardiovascular disease is increased

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19
Q

What other particle is formed in the fusion of
two protons to yield deuterium?

A

positron

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20
Q

Which isotope is produced when Polonium-
216 decays by emitting an alpha particle followed by two beta particles?

A

Polonium-212

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21
Q

Process of breaking down a large isotope
into smaller isotopes.

A

nuclear fission

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22
Q

In a dehydration reaction where water is lost, an organic compound C3H8O reacts with concentrated
phosphoric acid and a product is formed. This product rapidly decolorizes a solution of bromine in tetrachloromethane. What is this product?

A

Propene

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23
Q

An adiabatic process is one in which the system under investigation is thermally isolated so that there is no exchange of
heat with the surroundings. Thus, the work done on a closed system in an adiabatic process is _____.

A

Equal to the increase in internal energy of the system

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24
Q

Le Chatelier’s Principle.

A

states that when a stress is placed on a
system in equilibrium, the system tends to change in a way that relieves the stress.

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25
Q

These compounds are formed by the reaction of acids with alcohols.

A

esters

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26
Q

To which subatomic particle does each statement refer to a.) has a positive charge; b.) is found outside of the nucleus; c.) has the smallest mass; d.) has a negative charge?

A

proton, electron, electron, and electron

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27
Q

Clapeyron Equation

A

It postulates that if the temperature and pressure are both change in such a way
as to keep the chemical potentials of two phases equal to each other, the rates of
change are given by the equation.

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28
Q

Which would make more efficient cold
compress, ethanol or methanol?

A

Methanol

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29
Q

Name the major physiologically active substances that comes from: bark of the willow tree, the pituitary gland, the sap of the poppy and the belladonna plant.

A

Salicin, beta-endomorphin, opium, atropine

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30
Q

The element neon was discovered in 1898
by:

A

Travers and Ramsay

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31
Q

buckyball

A

fullerene

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32
Q

A solution of cation gives a crimson red
flame. This flame test is a confirmatory test
for:

A

Sr2+

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33
Q

What is the color of nickel chloride?

A

yellow

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34
Q

Substances whose solutions change color
due to changes in pH.

A

Indicator

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35
Q

It is an organic reaction that converts an
alcohol into an alkyl chlorine using
triphenylphosphine and carbon tetrachloride.

A

Appel Reaction

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36
Q

major component of lecithin.

A

Phosphatidylcholine

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37
Q

Polymer used in bullet proof vest

A

Linear Polyethylene

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38
Q

Author of Octet Rule

A

Gilbert Lewis

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39
Q

Which of the following indicators is used in
EDTA titration?
A. Solochrome C. Eriochrome Black T
B. Calmagite D. All of these

A

D. All of these

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40
Q

The theory of resonance was developed by
__ in order to further explain the bonding
structures of molecules or ions not covered
by the Lewis Octet rule.

A

Linus Pauling

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41
Q

Taurine, a Beta amino acid belongs to the
acidic group of:

A

–SO2OH

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42
Q

What did Clausius postulate?
A. The Clapeyron equation was simplified by assuming that the vapor obeys the ideal gas law and by neglecting the molar volume of the
liquid VL in comparison with the molar volume of the gas VG
B. The Clausius-Clapeyron equation does not apply to this situation
C. The Clausius-Clapeyron theory is applicable only for vaporization
and sublimation condition
D. Both scientists apply their postulates to linear and curvilinear
representation

A

A

43
Q

Identify the organic compounds in the following equation:
CH3CH(OH)CH2CHO → CH3CH=CH + H2O

A

carbonyl aldehyde; cis or trans-isomer

44
Q

Higher melting point
Substance A - Lauric Acid and Glycerol
Substance B - Stearic Acid and Glycerol

A

Substance B

45
Q

What is the theory in two or three dimensional collision to be applied when playing billiard balls and in order to sink the target ball in the corner pocket?

A

Where two equal masses undergo a glancing elastic collision

46
Q

When travelling at NLEX at 80mph, a stopped car in front causes you to suddenly skid to stop. What happened to the kinetic energy of the moving car?

A

All of it transferred to the road and surroundings

47
Q

When travelling at NLEX at 80mph, a stopped car in front causes you to suddenly skid to stop. What happened to the kinetic energy of the moving car?

A

All of it transferred to the road and surroundings

48
Q

Are reversible processes frictionless? Why?

A

Because when reversed, retraces its forward
path and restores the initial state of the system and surroundings

49
Q

What is the Nujol Mull in organic chemical reactions?

A

It is a mass spectrum technique and is obtained by grinding up a solid which is mixed with mineral oil to form a suspension for IR
spectroscopy

50
Q

Classify each of the following as homogeneous or heterogeneous:
I. a door
II. the air you breathe
III. a cup of coffee (black)
IV. the water you drink
V. salsa
VI. your lab partner

A

hetero, homo, homo, homo, hetero, hetero

51
Q

Where in the body does fatty acid synthesis occur?

A

Cytoplasm

52
Q

What structural characteristics do citric acid and malic acid have in common?

A

They are both hydroxy acids

53
Q

What is the difference between a coenzyme and a cofactor?

A

Cofactor is more generic; it means a nonprotein part of an enzyme. A coenzyme is an organic factor.

54
Q

Who discovered phenolphthalein?

A

Adolf von Baeyer

55
Q

How many high-energy phosphate bonds are in the ATP molecule?

A

2

56
Q

Classify each of the following as an element, a compound, or a mixture.

a) diamond
b) sea water
c) gasoline
d) wine
e) a pebble
f) bronze

A

element, mixture, mixture, mixture, mixture, mixture

57
Q

Which has higher absolute entropy at a temperature of 250C, cyclopropane or propylene? Why?

A

Propylene due to the free rotation around the carbon-carbon single bond.

58
Q

Glucose is the only carbohydrate compound that the brain can use for energy. Which pathway is mobilized to supply the need of the brain during starvation?

A

gluconeogenesis

59
Q

Crystals of a material are suspended in the middle of a cup of water at 2 deg C. How might you enable the crystals to rise to the surface of the water so that you can harvest them?

A

Increase the temperature of water to 4 deg C

60
Q

Predict the order of the melting points of triglycerides containing fatty acids, as follows:

I. Palmitic, palmitic, stearic
II. Oleic, stearic, palmitic
III. Oleic, linoleic, oleic

A

III < II < I

61
Q

How many molecules are in one drop of water?

A

1.7x10^21

62
Q

Which of the following objects are chiral (assume that there is no label or other identifying mark)?

a) Pair of scissors
b) Tennis ball
c) Paper clip
d) Beaker
e) The swirl created in water as it drains out of a sink or bathtub

A

chiral, achiral, achiral, achiral, chiral

63
Q

How to differentiate alkane alkene and alkyne?

A

reaction with Br2

64
Q

Olvanil

A

C26 H43 NO3

65
Q

Determine which of the following will float or sink in water: balsa wood, ethylene, glycol, table salt, ethanol.

A

float, sink, sink, float

66
Q

Answer the following questions

Is H+ (aq) capable of oxidizing Cu(s) to Cu2+ (aq)?
Is Fe3+ (aq) capable of oxidizing I- (aq)?
Is H2 (g) capable of oxidizing Ag+ (aq)?

A

no, yes, yes

67
Q

Notation on alkane containing Cl

A

chloro

68
Q

We heat 50.0 g of an unknown substance by adding 205 cal, and its temperature rises by 7.0°C. Identify the substance.

A

ethanol

69
Q

The purpose of control rods in a fission reactor is to:

A

absorb neutrons generated in the fission process.

70
Q

What is the difference between a coenzyme and a cofactor?

A

Cofactor is more generic; it means a nonprotein part of an enzyme. A coenzyme is an organic factor.

71
Q

Color of lead chromate

A

yellow

72
Q

Color of lead chromate

A

yellow

73
Q

hydrophilic, hydrophobic, or amphipatic: glucose

A

hydrophilic

74
Q

hydrophilic, hydrophobic, or amphipatic: stearic acid

A

amphipatic

75
Q

hydrophilic, hydrophobic, or amphipatic: soap

A

amphipatic

76
Q

hydrophilic, hydrophobic, or amphipatic: fatty acids

A

hydrophobic

77
Q

in order of decreasing acidity:

phenols, alcohols, carboxylic acids

A

carboxylic acid > phenol > alcohol

78
Q

test for saturated hydrocarbons

A

bromine water test (turns red/brown if saturated)

79
Q

glutamic acid

A

C5 H9 NO4

80
Q

tyrosine

A

C9 H11 NO3

81
Q

arginine

A

C6 H14 N4 O2

82
Q

phenylalanine

A

C9 H11 NO2

83
Q

Olvanil

A

C26 H43 NO3

84
Q

DNA

A

C15 H31 N3 O13 P2

85
Q

sunscreen vs sunblock

A

sunscreen - spf; prevents portion of UV from reaching screen

sunblock - prevents all UV by reflecting away from screen

86
Q

T/F: It is possible to have zero activation energy for an endothermic reaction.

A

F

87
Q

algal bloom due to overabundance of nitrogen

A

eutrophication

88
Q

energy supplied by the sun

A

1000 J/m2s

89
Q

ionization energy trend

A

N- < N < N+

90
Q

atomic radius trend

A

N+ < N < N-

91
Q

RA 8981

A

PRC Modernization Act of 2000

repealed PD 223

92
Q

date of approval of PRC Modernization Act (RA 8981)

A

December 5, 2000

93
Q

result of heating iodine crystals

A

turns into purple vapor

94
Q

11-tetradecenyl acetate

A

C16 H30 O2

95
Q

angelic acid

A

C5 H8 O2

2-methylbut-2-enoic acid

96
Q

distance from most remote known quasar

A

1.4 x 10^26

97
Q

distance from most remote galaxies

A

9 x 10^25

98
Q

mean orbit radius of Earth about Sun

A

1.5 x 10^11

99
Q

distance from sun to nearest star (proxima centauri)

A

4 x 10^16

100
Q

what happens w free radicals

A

unite with covalent bond formation

101
Q

most abundant isotope of Hydrogen

A

protium

102
Q

highest percentage by mass in seawater

A

Cl (55 g/kg)

103
Q

Cellulose

A

C6 H10 O5

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