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Chemistry > Chapter 3 > Flashcards

Chapter 3 Flashcards

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0
Q

Study of matter

A

Chemistry

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1
Q

Part of the universe that has mass and volume

A

Matter

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2
Q

Smallest unit of an element that keeps the properties of the element

A

Atom

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3
Q

Pure substance made of only one type of atom

A

Element

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4
Q

Substance made of two or more types of atoms that are chemically bonded

A

Compound

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5
Q

Type of compound in which bonds are covalent

A

Molecule

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6
Q

Four states of matter

A

Solids, liquids, gases, plasma

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7
Q

Definite volume

A

Solid

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8
Q

Definite shape

A

Solid

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9
Q

Atoms are packed together in fixed positions

A

Solid

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10
Q

Only vibrate in place

A

Solid

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11
Q

Definite volume

A

Liquid

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12
Q

Indefinite shape

A

Liquid

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13
Q

Atoms are close together

A

Liquids

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14
Q

Atoms can overcome attractive forces to flow

A

Liquids

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15
Q

Indefinite volume

A

Gas

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16
Q

Indefinite shape

A

Gas

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17
Q

Atoms move very quickly

A

Gas

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18
Q

Atoms are far apart

A

Gases

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19
Q

Pretty weak attractive forces

A

Gases

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20
Q

Compressible

A

Gases

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21
Q

Hight temperature state in which atoms lose their electrons

A

Plasma

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22
Q

Depend on the amount of matter

A

Extensive

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23
Q

Do not depend on the amount

A

Intensive

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24
Q

Change in substance that doesn’t change the identity of the substance (grinding, cutting, melting)

A

Physical

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25
Q

Involves a reaction to take place, a new substance to form

A

Chemical change

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26
Q

Substances that cannot be broken down into simpler substances by chemical reactions

A

Elements

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27
Q

Chemical combinations of elements

A

Compounds

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28
Q

Made of elements

A

Compounds

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29
Q

Can be broken down into elements

A

Compounds

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30
Q

Why are the groups lanthanides and actinide on the bottom?

A

The keep the width of the chart smaller

31
Q

At room temp are solid, expect mercury

A

Metals

32
Q

Can be rolled or hammered into sheets

A

Malleable

33
Q

Can be made into wire

A

Ductile

34
Q

Can resist breakage when pulled

A

High tensile strength

35
Q

Poor conductor of heat and electricity

A

Nonmetals

36
Q

Good conductor of electricity

A

Metals

37
Q

Many are gases at room temp

A

Nonmetals

38
Q

Some are solids

A

Nonmetals

39
Q

Element that has some characteristics of metals and Nonmetals

A

Metalloids

40
Q

Appear along staircase line

A

Metalloids

41
Q

Generally unreactive gases

A

Noble gases

42
Q

Uniform throughout, appears to be one thing

A

Homogeneous

43
Q

Pure substance - compound

A

Homogeneous

44
Q

Non uniform, contains regions with different properties than other regions

A

Heterogeneous

45
Q

Pure substances

A

Homogeneous compounds

46
Q

Separate into components based on chemical properties

A

Pure substance

47
Q

Every pure substance has the same

A

Characteristics, compositions, made of one type of atom

48
Q

One type of atom

A

Element

49
Q

2 or more types of atoms

A

Compounds

50
Q

T or F all chemicals have some level of impurity

A

True

51
Q

T or F not all chemicals in the lab are treated as pure

A

False

52
Q

Mixtures are Separated into components based on

A

Physical property

53
Q

All mixtures are made of

A

Pure substances

54
Q

Each component keeps it own identity and properties

A

Mixtures

55
Q

Can be separated using physical means

A

Mixtures

56
Q

Also called solutions

A

Homogeneous mixtures

57
Q

Water in solution

A

Aquious

58
Q

Mixture of metals

A

Alloys

59
Q

No visible parts

A

Homo mixtures

60
Q

T or F a solution is a homo mixture

A

True

61
Q

Not uniform in composition, visible parts

A

Heterogeneous mixtures

62
Q

Physical separation techniques (5)

A

Filtration vaporization decanting centrifuge paper chromatography

63
Q

Two different elements not chemically combined

A

Mixture

64
Q

Two different elements chemically combined

A

Compound

65
Q

Describe one method to separate a heterogeneous mixture

A

Filtration

66
Q

Describe one method to separate a homogeneous mixture

A

Distillation

67
Q

If trying to identify an unknown solid, what should help u out to figure out what it is?

A

Density

68
Q

Cutting hair

A

Physical

69
Q

Growing grass

A

Chemical

70
Q

Malleable

A

Metal

71
Q

Poor conductor of heat

A

Nonmetals

72
Q

Brittle

A

Nonmetals

73
Q

Ductile

A

Metal

74
Q

Good conductor of electricity

A

Metals

75
Q

Brittle and good conductor of electricity

A

Metalloids

76
Q

Good conductor of heat

A

Metals

Chemistry (11 decks)

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