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ICP > Chapter 2 > Flashcards

Chapter 2 Flashcards

1
Q

Matter can be separated into 2 categories _______________________ and _______________________.

A

Pure Substances and Mixtures

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2
Q

Fixed Ratio. Matter that always has the same chemical composition
Is what?

A

Pure Substance

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3
Q

Not Fixed Ratios. Amounts of different chemicals can vary.

Is what?

A

Mixtures

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4
Q

Every sample of a given substance has the same properties because a substance has a
___________________________________

A

Fixed uniform composition

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5
Q

Anything that has mass and takes up space

is what?

A

Matter

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6
Q

Substances can be classified into two categories

______________________ and _________________________

A

Elements and compounds

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7
Q

A substance that can not be broken into simpler substances

Is what?

A

Element

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8
Q

The smallest particle of an element

Is what?

A

Atom

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9
Q

An element has a ______________ composition because it contains
____________________________________

A

Fixed composition

Contains only one type of atom

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10
Q

A substance that is made of two (in a fixed ratio) or more simpler substances and can be broken down into separate elements
Is what?

A

Compound

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11
Q

A compound always contains at least _____ elements.

A

Two

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12
Q

The substances that make up a compound are always joined in a ___________________________

A

Fixed proportion

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13
Q

A compound can be broken down into ________________________________________

A

Simpler substances

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14
Q

The properties of a mixture can vary because________________________________________________

A

The composition of matter is not fixed

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15
Q

A type of mixture in which the parts of the mixture are noticeably different from one another. Can tell the different components apart.
Is what?

A

Heterogeneous mixture

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16
Q

A type of mixture in which the substances are so evenly mixed that it is difficult to distinguish one from another. Cannot tell the different components apart.
Is what?

A

Homogeneous mixture

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17
Q

Based on the size of its largest particle, a mixture can be classified as a ________________, _________________, or ________________________.

A

Solution, suspension, colloid

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18
Q

A mixture that forms when substances dissolve and form a homogeneous mixture, can’t filter, scatter light, small particles.
Is what?

A

Solution

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19
Q

A heterogeneous mixture that separates into layers over time.
Is what?

A

Suspension

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20
Q

Mixture that contain medium size particles. Scatters light, can’t filter.
Is what?

A

Colloid

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21
Q

Anything that has mass and takes up space

is what?

A

Matter

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22
Q

Substances can be classified into two categories

______________________ and _________________________

A

Elements and compounds

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23
Q

A substance that can not be broken into simpler substances

Is what?

A

Element

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24
Q

The smallest particle of an element

Is what?

A

Atom

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25
Q

An element has a ______________ composition because it contains
____________________________________

A

Fixed composition

Contains only one type of atom

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26
Q

A substance that is made of 2 or more simpler substances and can be broken down into those elements.
Is what?

A

Compound

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27
Q

A compound always contains at least _____ elements.

A

Two

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28
Q

The substances that make up a compound are always joined in a ___________________________

A

Fixed proportion

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29
Q

A compound can be broken down into ________________________________________

A

Simpler substances

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30
Q

The properties of a mixture can vary because________________________________________________

A

The composition of matter is not fixed

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31
Q

A type of mixture in which the parts of the mixture are noticeably different from one another.
Is what?

A

Heterogeneous mixture

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32
Q

A type of mixture in which the substances are so evenly mixed that it is difficult to distinguish one from another.
Is what?

A

Homogeneous mixture

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33
Q

Based on the size of its largest particle, a mixture can be classified as a ________________, _________________, or ________________________.

A

Solution, suspension, colloid

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34
Q

A mixture that forms when substances dissolve and form a homogeneous mixture.
Is what?

A

Solution

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35
Q

A heterogeneous mixture that separates into layers over time.
Is what?

A

Suspension

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36
Q

Mixture that contain mid size particles. Scatters light, can’t filter.
Is what?

A

Colloid

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37
Q

Anything that has mass and takes up space

is what?

A

Matter

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38
Q

Anything that has mass and takes up space

is what?

A

Matter

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39
Q

Anything that has mass and takes up space

is what?

A

Matter

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40
Q

Used to observe and describe matter.

Is what?

A

Physical property

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41
Q

The tendency of a liquid to keep from flowing. Resistance of a liquid to flowing.
Is what?

A

Viscosity

42
Q

High viscosity is

Thick or Thin?

A

Thick

43
Q

Low viscosity is?

Thick or Thin

A

Thin

44
Q

A materials ability to allow heat and electricity to flow well.
Is what?

A

Conductivity

45
Q

Good conductors heat ____________

A

Well

46
Q

Poor conductors ________________ conduct heat well.

A

Do not

47
Q

Ability of a solid to be hammered but it won’t shatter.

Is what?

A

Malleability

48
Q

What is the hardest known material?

A

Diamond

49
Q

The temperature at which a material changes from a solid to a liquid.
Is what?

A

Melting point

50
Q

The point when a liquid changes to a gas.

Is what?

A

Boiling point

51
Q

Ratio of mass to volume.

Is what?

A

Density

52
Q

Physical properties are used to ________________________, to ________________________________
__________________, or to __________________________________________.

A

Identify a material, choose a material for a specific purpose, separate the substance in a mixture

53
Q

___________________ and ________________________ are two common separation methods.

A

Filtration and distillation

54
Q

Separates materials based on the size of particles.

Is what?

A

Filtration

55
Q

The process that separates substances in a solution based on boiling points.
Is what?

A

Distillation

56
Q

Changes affecting the form of a chemical substance

A

Physical change

57
Q

Produces a change in the composition of a matter.

Is what?

A

Chemical properties

58
Q

Chemical properties can be observed only when____________________________________________
___________________________________________.

A

The substances in a sample are changing the different substances

59
Q

A materials ability to burn in the presence of oxygen.

Is what?

A

Flammability

60
Q

How readily substances combine chemically with others.

Is what?

A

Reactivity

61
Q

Used to observe and describe matter.

Is what?

A

Physical property

62
Q

The tendency of a liquid to keep from flowing. Usually decreases as temperature increases.
Is what?

A

Viscosity

63
Q

High viscosity is

Thick or Thin?

A

Thick

64
Q

Low viscosity is?

Thick or Thin

A

Thin

65
Q

A materials ability to allow heat and electricity to flow well.
Is what?

A

Conductivity

66
Q

Good conductors heat ____________

A

Well

67
Q

Poor conductors ________________ conduct heat well.

A

Do not

68
Q

Ability of a solid to be hammered but it won’t shatter.

Is what?

A

Malleability

69
Q

What is the hardest known material?

A

Diamond

70
Q

The temperature at which a material changes from a solid to a liquid.
Is what?

A

Melting point

71
Q

The point when a liquid changes to a gas.

Is what?

A

Boiling point

72
Q

Ratio of mass to volume.

Is what?

A

Density

73
Q

Physical properties are used to ________________________, to ________________________________
__________________, or to __________________________________________.

A

Identify a material, choose a material for a specific purpose, separate the substance in a mixture

74
Q

___________________ and ________________________ are two common separation methods.

A

Filtration and distillation

75
Q

Separates materials based on the size of particles.

Is what?

A

Filtration

76
Q

Different boiling points.

Is what?

A

Distillation

77
Q

Changes affecting the form of a chemical substance

A

Physical change

78
Q

Produces a change in the composition of a matter.

Is what?

A

Chemical properties

79
Q

Chemical properties can be observed only when____________________________________________
___________________________________________.

A

The substances in a sample are changing the different substances

80
Q

A materials ability to burn in the presence of oxygen.

Is what?

A

Flammability

81
Q

How readily substances combine chemically with others.

Is what?

A

Reactivity

82
Q

Involves the rearrangement of atoms of one or more substances.
Is what?

A

Chemical change

83
Q

Involves the rearrangement of atoms of one or more substances.
Is what?

A

Chemical change

84
Q

Three common types of evidence for a chemical change are ______________________________,
__________________________, and _________________________________.

A

Change in color, production of gas, formation of precipitate

85
Q

A creation of a solid from a solution.

Is what?

A

Precipitate

86
Q

When matter undergoes a chemical change, the ____________________________________________.

A

Composition of matter changes

87
Q

When matter undergoes a physical change, _________________________________________________.

A

There is no change in its chemical composition.

88
Q

An ice cube is placed in the sun. Later there is a puddle of water. Later still the puddle is gone.
Physical OR Chemical Change

A

Physical

89
Q

Two chemicals are mixed together and a gas is produced.

Physical OR Chemical Change

A

Chemical

90
Q

A bicycle changes color as it rusts.

Physical OR Chemical Change

A

Chemical

91
Q

A solid is crushed to a powder.

Physical OR Chemical Change

A

Physical

92
Q

Two substances are mixed and light is produced.

Physical OR Chemical Change

A

Chemical

93
Q

A piece of ice melts and reacts with sodium.

Physical OR Chemical Change

A

Chemical

94
Q

Mixing salt and pepper.

Physical OR Chemical Change

A

Physical

95
Q

Chocolate syrup is dissolved in milk.

Physical OR Chemical Change

A

Physical

96
Q

A marshmallow is toasted over a campfire.

Physical OR Chemical Change

A

Chemical

97
Q

A marshmallow is cut in half.

Physical OR Chemical Change

A

Physical

98
Q

Melting and freezing are ________________ changes.

Physical OR Chemical

A

Physical

99
Q

Flat soda pop

Homogeneous OR Heterogeneous

A

Homogeneous

100
Q

Cherry vanilla ice cream

Homogeneous OR Heterogeneous

A

Heterogeneous

101
Q

Salad dressing

Homogeneous OR Heterogeneous

A

Heterogeneous

102
Q

Sugar

Homogeneous OR Heterogeneous

A

Homogeneous

ICP (1 decks)

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