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WAZZAP > Quiz 22 > Flashcards

Quiz 22 Flashcards

1
Q
  1. Atomic mass is equivalent to _____ of the atomic weight of carbon.

12

1/12

1/3

¼

A

1/12

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2
Q
  1. The energy needed to remove the most loosely bounded electron of an atom.

ionization energy

electronegativity

electron affinity

kinetic energy

A

ionization energy

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3
Q
  1. Calcium carbonate is also known as

chalk

charcoal

feldspar

silica

A

chalk

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4
Q
  1. In an acid-base titration using phenolphthalein indicator, the equivalence point is manifested by the appearance of what color?

yellow

red

purple

blue

A

purple

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5
Q
  1. Oil of wintergreen is also known as

methyl salicylate

ethyl salicylate

benzyl acetate

linalyl acetate

A

methyl salicylate

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6
Q
  1. One gram mole of a specie is that weight of the specie equivalent to its

molecular weight

atomic number

atomic mass

number of neutrons

A

molecular weight

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7
Q
  1. Defines a base as a compound that dissolves in water to produce hydroxide ions.

Arrhenius

Lewis

Bronsted

Lowry

A

Arrhenius

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8
Q
  1. Cr(NH3)5SO4Cl represents ___ atoms.

27

12

18

24

A

27

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9
Q
  1. The mass contribution of an electron in an atom is

1/1837 that of proton

equal to that of proton

equal to that of neutron

half that of the nucleus

A

1/1837 that of proton

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10
Q
  1. Along a row in the periodic table of elements have the same

energy level

configuration

size

electronegativity

A

energy level

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11
Q
  1. Hydrogen is common to all

acids

salts

oxides

metals

A

acids

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12
Q
  1. The electrons of metals are free to move in a solid. This explains why

metals are unstable

metals can be easily molded

metals have high reflectivity

metals have high conductivity

A

metals have high conductivity

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13
Q
  1. Which of the following solution in water has the lowest pH?

ammonium acetate

sodium chloride

ammonium chloride

A

ammonium chloride

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14
Q
  1. How many pi bonds are there in a double bond?

0

1

2

3

A

1

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15
Q
  1. All isotopes of a given element have?

equal number of protons and neutrons

the same number of protons

the same number of atomic mass units

the same number of neutrons

A

the same number of protons

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16
Q
  1. Which will dissolve fastest in coffee?

lump sugar in hot coffee

granular sugar in hot coffee

granular sugar in cold coffee

lump sugar in cold coffee

A

granular sugar in hot coffee

17
Q
  1. As water boils, the temperature

increases

decreases

remains constant at 100˚C until all is changed to vapor

varies

A

remains constant at 100˚C until all is changed to vapor

18
Q
  1. How may neutrons are there in a platinum atom? Atomic number = 78 ‘ mass number = 195

78

195

117

273

A

117

19
Q
  1. 1s²2s²2p5 is the electronic configuration for

sodium

fluorine

nitrogen

oxygen

A

fluorine

20
Q
  1. A lab technician may prevent a blood sample from clotting by adding a compound that prevents ___ from entering the clotting process.

potassium citrate

vitamin K

sodium ion

calcium ion

A

calcium ion

21
Q
  1. The special region of an enzyme where the substrate molecules fits is called the

activation energy

substrate bond

active site

catalyst

A

active site

22
Q
  1. It is the dimensionless ratio of the weight of a body to the weight of an equal volume of a substance taken as a standard.

specific weight

specific gravity

mass density

bulk modulus of elasticity

A

specific gravity

23
Q
  1. The evaporative loss of water from macroscopic plants is

evaporation

condensation

transpiration

respiration

A

transpiration

24
Q
  1. It is a measure of the acidic or basic nature of water.

alkalinity

pH

acidity

hardness

A

pH

25
Q
  1. Which of the following is the compressibility factor of an ideal gas?

1

2

1.5

0

A

1

WAZZAP (31 decks)

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