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Chemistry-Midterm > Honors Chemistry - Midterm REVIEW > Flashcards

Honors Chemistry - Midterm REVIEW Flashcards

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0
Q

What is chemistry?

A

A study of the materials in the universe and the changes they undergo

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1
Q

List the steps of the scientific method (there are 8)

A 
Objective
Research (background)
Hypothesis
Procedure
Data
Analysis
Conclusion
Communicate Results (discuss)
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2
Q

What are the two types of observations

A

Qualitative Observations

Quantitative Observations

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3
Q

Qualitative Observation ex:

A

blue liquid, viscus liquid

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4
Q

Quantitative Observation ex:

A

crystals - 2.02g

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5
Q

The state of matter for an object that has neither definite shape nor definite volume

A

gaseous

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6
Q

The state of matter for an object that has a definite volume but not a definite shape

A

liquid

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7
Q

The state of matter for an object that has both definite volume and definite shape is

A

solid

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8
Q

Anything that has mass and volume is called

A

matter

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9
Q

cooking an egg

A

chemical change

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10
Q

boiling water

A

physical change

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11
Q

ironing a shirt

A

physical change

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12
Q

burning gasoline

A

chemical change

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13
Q

decomposing water

A

chemical change

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14
Q

evaporating alcohol

A

physical change

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15
Q

sanding a table top

A

physical change

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16
Q

grinding grain

A

physical change

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17
Q

fermenting fruit juice

A

chemical change

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18
Q

dissolving sugar in water

A

physical change

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19
Q

cooking an egg involves…

A

a chemical change

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20
Q

evaporating water is a…

A

physical change

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21
Q

Helium is very nonreactive

A

chemical property

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22
Q

boiling water involves…

A

no chemical change

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23
Q

sugar dissolves in coffee is a…

A

physical change

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24
Q

a “tin” can rusts is a…

A

chemical change

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25
Q

digesting pizza

A

chemical change

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26
Q

In a chemical change,

A

the products are different substances from the starting materials

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27
Q

baking a cake

A

chemical change

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28
Q

lighting a match

A

chemical change

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29
Q

driving a car

A

chemical change

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30
Q

cookies burn in the oven

A

chemical change

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31
Q

a banana ripens

A

chemical change

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32
Q

leaves turn colors in the fall

A

chemical change

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33
Q

water condenses on a mirror

A

physical change

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34
Q

grinding coffee beans

A

physical change

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35
Q

coffee spilled on a shirt

A

physical change

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36
Q

an ice cube melting in a drink

A

physical change

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37
Q

All _____ are ______ changes

A

phase

physical

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38
Q

If iodine melts at 114C and boils at 184C, what is its physical state at 120C?

A

solid

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39
Q

If iodine melts at 114C and boils at 184C, what is its physical state at 98C?

A

liquid

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40
Q

If iodine melts at 114C and boils at 184C, what is its physical state at 250C?

A

gas

41
Q

chemical property of gold

A

gold is an inert (nonreactive) metal

42
Q

paper burning

A

chemical change

43
Q

water boiling

A

physical change

44
Q

gasoline evaporating

A

physical change

45
Q

butter melting

A

physical change

46
Q

sugar dissolving in water

A

physical change

47
Q

compound

A

always has the same composition

48
Q

helium

A

element

49
Q

A compound can consist of one kind of element (T/F)

A

False

50
Q

oxygen

A

element

51
Q

silver

A

element

52
Q

the air in this room

A

mixture

53
Q

elements, compounds, pure water, and carbon dioxide are all…

A

pure substances

54
Q

a solution of..

A

gases

55
Q

a mixture of..

A

solids

56
Q

a homogenous mixture is called…

A

solution

57
Q

table salt

A

a compound

58
Q

chlorine gas

A

element

59
Q

sand in water

A

a heterogenous mixture

60
Q

petroleum

A

a homogenous mixture

61
Q

caffeine

A

a homogenous mixture

62
Q

water is an example of

A

a compound

63
Q

a solution can be distinguished from a compound by its

A

variable composition

64
Q

iron

A

element

65
Q

14K gold

A

mixture

66
Q

pure silver

A

element

67
Q

aluminum

A

element

68
Q

distilled water

A

compound

69
Q

tap water

A

mixture

70
Q

brass

A

mixture

71
Q

tungsten

A

element

72
Q

sodium chloride

A

compound

73
Q

air is a…

A

mixture

74
Q

homogenous mixture ex:

A

vodka

75
Q

helium

A

element

76
Q

the process of filtering a sand-saltwater mixture is a _____ process

A

physical

77
Q

Breaking a compound into its constituent elements requires

A

chemical methods

78
Q

separating a heterogenous mixture into pure substances requires

A

physical methods

79
Q

separating a homogenous mixture into pure substances

A

physical methods

80
Q

the light on the candle burns until a bell jar is placed over it for a period of time is a

A

chemical change

81
Q

when a few drops of red food coloring are added to a beaker of hot water, the water immediately turns red is a

A

physical change

82
Q

dry ice sublimes when left on the demo table in lecture is a

A

physical change

83
Q

liquid nitrogen dumped onto the floor vaporizes at room temperatures is a

A

physical change

84
Q

gasoline is a

A

homogenous mixture

85
Q

pure water

A

heterogenous mixture

86
Q

jar of jelly beans

A

heterogenous mixture

87
Q

soil

A

heterogenous mixture

88
Q

copper metal

A

heterogenous mixture

89
Q

diamond is a ______ state of matter

A

solid

90
Q

A _____ change involves change in one or more physical properties, but no change in the fundamental components that make up the substance

A

physical

91
Q

A _____ change involves a change in the fundamental components of the substance; a given substance changes into a different substance or substances.

A

chemical

92
Q

water is a

A

pure substance

93
Q

carbon is a

A

pure substance

94
Q

gold is a

A

pure substance

95
Q

ammonia is a

A

pure substance

96
Q

water is a

A

mixture

97
Q

ammonia is a

A

compound

98
Q

How many decimeters in one meter?

A

10

99
Q

What is the fundamental SI unit of mass in the metric system?

A

kilograms

100
Q

pure water is a…

A

compound

Chemistry-Midterm (2 decks)

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