WAZZAP > Quiz 9 > Flashcards

Quiz 9 Flashcards

(50 cards)

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1
Q
  1. In testing a substance for the presence of glucose, it should be heated with

Benedict’s solution

iodine solution

glycagon

Burrough’s solution

A

Benedict’s solution

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2
Q
  1. As the number of neutrons in the nucleus of an atom increases, the atomic number of the atom

increases

decreases

remains the same

varies with the form of the isotope

A

remains the same

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3
Q
  1. The termed used to denote the deteriorative processes that occur with polymeric materials.

rusting

oxidation

corrosion

degradation

A

degradation

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4
Q
  1. Production of methane from solid waste is a/an

aerobic digestion

anaerobic digestion

aerobic respiration

anaerobic respiration

A

anaerobic digestion

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5
Q
  1. Which of the following will lower the pH of a citric acid solution?

adding acetate ions

adding citric acid

adding citrate ions

adding chloride ions

A

adding citric acid

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6
Q
  1. Which of the following is the strongest acid?

HOCl

HOBr

HOI

Hac

A

HOCl

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7
Q
  1. Of the following which is the strongest acid?

HClO4

HClO

HClO2

HClO3

A

HClO4

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8
Q
  1. The reason that some insects can walk on water is due to

surface tension

adhesive forces

vaporization

capillary action

A

surface tension

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9
Q
  1. Increasing the amount of liquid in a closed container will cause the vapor pressure of the liquid to

increase

decrease

remain the same

depends on the liquid

A

remain the same

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10
Q
  1. Which of the following is an exothermic process?

freezing

subliming

boiling

melting

A

freezing

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11
Q
  1. First ionization energy refers to

removal of an electron from a gas atom

trapping an ion in a lattice structure

energy to form the most probable ion

formation of a -1 anion

A

removal of an electron from a gas atom

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12
Q
  1. What is the molecular formula of silicon oxide?

SiO

Si2O

SiO4

SiO2

A

SiO2

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13
Q
  1. Two metals that each commonly form +1 and +2 ions in solution are

Cu and Hg

Au and Ag

Fe and Cu

Zn and Cd

A

Cu and Hg

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14
Q
  1. Hydroiodic acid contains how many elements?

1

2

3

4

A

2

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15
Q
  1. The common name of the oxide of nitrogen with the formula N2O is

nitrogen dioxide

nitrous oxide

nitric oxide

dinitrogen oxide

A

nitrous oxide

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16
Q
  1. Metallic elements are found where in the periodic table?

in the far left-hand and far right-hand groups

in the left-hand and middle groups

in the middle of the table and Group VIII A

only in Groups IA and IIA

A

in the left-hand and middle groups

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17
Q
  1. Metals have

both high electrical and high thermal conductivity

low cohesive strength and high luster

high electrical but low thermal conductivity

high luster and low ductility

A

both high electrical and high thermal conductivity

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18
Q
  1. Nonmetals are

malleable but not ductile

very reactive with acids

good conductors of electricity

able to form halides, which react with water to form an oxyacid

A

able to form halides, which react with water to form an oxyacid

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19
Q
  1. The halogens

will not react with each other

form strong oxyacids of the formula HOX3

are strong electron donors

form strong covalent bonds wit group IA metals

A

form strong oxyacids of the formula HOX3

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20
Q
  1. An organic compound has an empirical formula of C3H8O. This formula can represent

three alcohols

two alcohols and one ether

one organic acid

two ethers and one alcohol

A

two alcohols and one ether

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21
Q
  1. CH3—CH2—OH is

an aldehyde

an alcohol

an organic acid

a ketone

22
Q
  1. CH3—CH= O is

an alcohol

an ester

an alkyne

an aldehyde

23
Q
  1. CH3–C≡N is

an amine

a nitrile

an amide

an azide

24
Q
  1. It is a special type of intermolecular attraction that exists between the hydrogen atom in a polar bond (particularly an H-F, H-O or H-N bond) and an unshared electron pair on a nearby small electronegative ion or atom (usually an F, O or N atom on another molecule).

London dispersion force

hydrogen bonding

Van der Waals force

polar bond

Study These Flashcards
A

hydrogen bonding

25
25. The rise of liquids up very narrow tubes is called surface tension capillarity action viscosity buoyant force
capillarity action
26
26. Sometimes as we remove heat from a liquid we can temporarily cool it below its freezing point without forming a solid. This phenomenon is called fusion supercooling vaporization sublimation
supercooling
27
27. The highest temperature at which a substance can exist as liquid is called its boiling point melting point critical temperature Boyle temperature
critical temperature
28
28. The triple point of water is 0°C, 1 atm 0.0098°C, 4.58 torr 374.4°C, 217.7 atm -56.4°C, 5.11 atm
0.0098°C, 4.58 torr
29
29. Quartz is LiO2 SiO2 N2O S2O3
SiO2
30
30. He coined the word “polymer” to denote molecular substances of high molecular mass formed by the polymerization (joining together) of monomers, molecules with low molecular mass. Arthur Little Antoine Lavoiser Jons Jakob Berzelius John Dalton
Jons Jakob Berzelius
31
31. A substance that can accept a proton or a proton acceptor. Arrhenius acid Arrhenius base Bronsted acid Bronsted base
Bronsted base
32
32. If two solutions of identical osmotic pressure are separated by a semipermeable membrane, no osmosis will occur. The two solutions are said to be ____. saturated isobaric polytropic isotonic
isotonic
33
33. A hydrocarbon derivative in which one or more hydrogen of a parent hydrocarbon have been replaced by a hydroxyl functional group, OH. carboxylic acid esters alcohols ethers
alcohols
34
34. It is a product of the fermentation of carbohydrates such as sugar and starch. methanol ethanol dimethyl ether ethanoic acid
ethanol
35
35. Compounds in which two hydrocarbon groups are bonded to one oxygen are called ethers esters phenols amines
ethers
36
36. Which of the following has no carbonyl group? aldehydes ketones carboxylic acids ethers
ethers
37
37. It is the scattering of light by colloidal particles. Brownian movement Tyndall effect Corioles effect Messner effect
Tyndall effect
38
38. A type of colloid in which a liquid is dispersed in a liquid, example, milk. foam emulsion sol aerosol
emulsion
39
39. A type of colloid in which a liquid/solid is dispersed in a gas, example, fog, smoke. aerosol foam emulsion sol
aerosol
40
40. A type of colloid in which a gas is dispersed in a liquid, example, whipped cream. aerosol foam emulsio sol
foam
41
41. It refers to adherence to a surface. adsorption absorption desorption osmosis
adsorption
42
42. Baking soda is Na2CO3 CaCO3 Na2CO310H2O NaHCO3
NaHCO3
43
43. It consist of O-Si-O chains in which the remaining bonding positions on each silicon are occupied by organic groups as CH3. Boranes Silicones Sulfide Nitrides
Silicones
44
44. Which of the following is an aluminum ore? sphalerite amalgam galena bauxite
bauxite
45
45. Which of the following radioisotopes is used in treating cancer? cobalt-60 uranium-233 helium-4 uranium-238
cobalt-60
46
46. Which of the following indicators is yellow in acidic solution and blue in basic solution? HpH thymol blue bromthymol blue methyl orange
bromthymol blue
47
47. A substance that is capable of acting as either an acid or a base. buffer amphoteric lewis acid lewis base
amphoteric
48
48. A substance (molecule or ion) that can transfer a proton to another substance. Arrhenius acid Arrhenius base Bronsted acid Bronsted base
Bronsted acid
49
49. Elements can be decomposed by chemical means cannot be decomposed by chemical means contain two or more atoms chemically combined commingle two or more substances
cannot be decomposed by chemical means
50
50. Which of the following is NOT true of solids? true solids have a crystalline structure they take the shape of the container the particle vibrate they have a definite volume
they take the shape of the container
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