Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry > Physical or Chemical Change Exam > Flashcards

Physical or Chemical Change Exam Flashcards

1
Q
  1. observed with senses
  2. determined without destroying matter
A

Physical property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
  1. indicates how a substance
  2. matter will be changed into a new
    substance after the reaction
A

Chemical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

blue color

A

Physical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

density

A

Physical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

flammability (burns)

A

Chemical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

flammability (burns)

A

Chemical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

solubility (dissolves)

A

Physical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

reacts with acid

A

Chemical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

supports combustion

A

Chemical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

sour taste

A

Physical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

melting point

A

Physical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

reacts with water

A

Chemical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

hardness

A

Physical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

boiling point

A

Physical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

luster

A

Physical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

odor

A

Physical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

reacts with air

A

Chemical Property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q
  1. a change in size, shape, or state
  2. no new substance is formed
A

Physical change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q
  1. a change in the physical and chemical properties
  2. a new substance is formed
A

CHEMICAL CHANGE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

NaCl (Table Salt) dissolves in water.

A

Physical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Ag (Silver) tarnishes.

A

Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

An apple is cut

A

Physical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Heat changes H₂O to steam.

A

Physical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Baking soda reacts to vinger..

A

Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Fe (Iron) rusts

A

Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Alcohol evaporates

A

Physical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Ice melts.

A

Physical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Milk sours.

A

Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Sugar dissolves in water.

A

Physical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Wood rots.

A

Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Pancakes cook.

A

Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Grass grows.

A

Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

A tire is inflated

A

Physical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Food is digested.

A

Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Paper towel absorbs water.

A

Physical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

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

A

Physical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Two chemical are mixed together and a gas is produce.

A

Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

A bicycle changes color as it rusts.

A

Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

A solid is crushed to a powder.

A

Physical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Two substances are mixed and light is produced.

A

Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

A piece of ice melts and reacts with sodium.

A

Physical and Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Mixing salt and pepper.

A

Physical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Chocolate syrup is dissolved in milk.

A

Physical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

A marshmallow is toasted over a campfire.

A

Chemical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

A marshmallow is cut in half.

A

Physical Change

46
Q

Umm! A student removes a loaf of bread 1. hot from the oven. The student cuts a slice off the loaf and spreads butter on it.

Physical or Chemical Change ?
What is the evidence?

A

Physical Change

No change in substances.
No unexpected color change, temperature, change or gas given off.

47
Q

Your friend decides to toast a piece of bread, but leaves it in the toaster too long. The bread is black and the kitchen if full of smoke.

Physical or Chemical Change ?
What is the evidence?

A

Chemical Change

Identity of substances change.

Blackening of bread and smoke is the new substance.

48
Q

You forgot to dry the bread knife when you washed it and reddish brown spots appeared on it

Physical or Chemical Change ?
What is the evidence?

A

Chemical Change

Identity of substances change.
Iron of knife forms rust

49
Q

You blow dry your wet hair.

Physical or Chemical Change ?
What is the evidence?

A

Physical Change

No change in substances.

No unexpected color change, temperature change or gas given off.

50
Q

In baking biscuits and other quick breads. the baking powder reacts to release carbon. dioxide bubbles. The carbon dioxide bubbles cause the dough to rise

Physical or Chemical Change ?
What is the evidence?

A

Chemical Change

Identity of substances change.
Gas is produced.

51
Q

In baking biscuits and other quick breads. the baking powder reacts to release carbon. dioxide bubbles. The carbon dioxide bubbles cause the dough to rise

Physical or Chemical Change ?
What is the evidence?

A

Chemical Change

Identity of substances change.
Gas is produced.

52
Q

You take out your best silver spoons and 6. notice that they are very dull and have some black spots.

Physical or Chemical Change ?
What is the evidence?

A

Chemical Change

Identity of substances change.
Silver oxide produced

53
Q

A straight piece of wire is coiled to form a spring.

Physical or Chemical Change ?
What is the evidence?

A

Physical Change

No change in substances.
No unexpected color change, temperature change or gas given off

54
Q

Food color is dropped into water to give it color.

Physical or Chemical Change ?
What is the evidence?

A

Physical Change

No change in substances.
No unexpected color change, temperature change or gas given off

55
Q

Chewing food to break it down into smaller particles represents a ______ change, but the changing of starch into sugars by enzymes in the digestive system represents a ______ change.

Physical or Chemical Change ?
What is the evidence?

A

Physical Change then Chemical Change

Chewing breaks down matter into smaller.
particles of the same substance. Enzymes change starch into sugar which is a new substance.

56
Q

In a fireworks show, the fireworks explode giving off heat and light.

Physical or Chemical Change ?
What is the evidence?

A

Physical Change

Identity of substances change.
Fireworks combust making new products and energy.

57
Q

Changing the size and shapes of pieces of wood would be a chemical change

True (T) or False (F)

A

F

58
Q

In a physical change, the makeup of matter is changed.

True (T) or False (F)

A

F

59
Q

Evaporation occurs when liquid water changes into a gas.

True (T) or False (F)

A

T

60
Q

Evaporation is a physical change

True (T) or False (F)

A

T

61
Q

Burning wood is a physical change

True (T) or False (F)

A

F

62
Q

Combining hydrogen and oxygen to make water is a physical change.

True (T) or False (F)

A

F

63
Q

Breaking up concrete is a physical change.

True (T) or False (F)

A

T

64
Q

Sand being washed out to sea from the beach is a chemical change.

True (T) or False (F)

A

F

65
Q

When ice cream meits, a chemical change occurs.

True (T) or False (F)

A

F

66
Q

Acid rain damaging a marble statue is a physical change.

True (T) or False (F)

A

F

67
Q

Acid rain damaging a marble statue is a physical change.

True (T) or False (F)

A

F

68
Q

A table that shows the elements, their atomic number, symbol, and average atomic mass; elements with similar chemical properties are grouped together.

A

periodic table

69
Q

A horizontal row of elements in the periodic table

A

Period

70
Q

a vertical column of elements in the periodic table

A

Group

71
Q

An atom or group of atoms that has a positive or negative charge.

A

Ion

72
Q

electrons occupy orbitals of the same energy in a way that makes the number of electrons with the same spin direction as large as possible

A

Hund’s Rule

73
Q

An atomic orbital may describe at most two electrons, each with opposite spin direction

A

pauli exclusion principle

74
Q

Elements that are poor conductors of heat and electric current

A

Nonmetals

75
Q

Elements that are good conductors of heat and electric current.

A

metal

76
Q

5-7

A

nonmetal

77
Q

4

A

nonmetal/metal

78
Q

1-3

A

metal

79
Q

A chemical reaction involving the transfer of one or more electrons from one substance to another substance

A

redox reaction

80
Q

element or compound

A

substance

81
Q

A negatively charged ion

A

Anion

82
Q

A positively charged ion

A

Cation

83
Q

A combination of chemical symbols and numbers to represent a substance

A

chemical formula

84
Q

refers to items intended for personal use that contains chemical substances or mixtures

A

consumer products

85
Q

A technique that is used to separate the components of a mixture based on the tendency of each component to travel or be drawn across the surface of another material.

A

Chromatography

86
Q

how many hydrogen in C2H4

A

4

87
Q

How many carbon in C2H4

A

2

88
Q

how many atom in C2H4

A

6

89
Q

how many kinds of atom are there in C2H4

A

2

90
Q

simplest form of organic compound

A

Alkane

91
Q

simplest form of hydrocarbon

A

Methane

92
Q

hydrocarbons that contain similar ring structures

A

aromatic hydrocarbons

93
Q

not found in nature and does not contain carbon

A

non organic compound

94
Q

the process by which one or more substances change to produce one or more different substances

A

chemical reaction

95
Q

A chemical substance that is present at the start of a chemical reaction

A

Reactant

96
Q

A pure substance made of only one kind of atom

A

Element

97
Q

a diagram that shows the distribution of electrons in the orbitals of the energy levels

A

orbital diagram

98
Q

7 stable elements

A

helium - 2
neon - 10
argon - 18
krypton - 36
xenon - 54
radon - 86
oganesson - 118

99
Q

uses stable elements as shortcut way of writing the e.c.

A

core method of electronic configuration

100
Q

only aplies on alkane

A

condensed structural formula

101
Q

consists of an element’s symbol, representing the atomic nucleus and inner-level electrons, that is surrounded by dots, representing the atom’s valence electrons

A

electron dot structure

102
Q

diagram of a molecule using dots to represent valence electrons

element symbol+atomic number

A

Lewis Dot Structure

103
Q

a bond formed by the attraction between positively charged metal ions and the electrons around them

metal-metal

A

Metallic bonding

104
Q

Center of an atom

A

Nucleus

105
Q

A subatomic particle that has a negative charge

A

electron

106
Q

A subatomic particle that has no charge and that is found in the nucleus of an atom

A

Neutron

107
Q

A subatomic particle that has a positive charge and that is found in the nucleus of an atom

A

Proton

108
Q

The average mass of all the isotopes of an element

A

atomic mass

109
Q

Atoms with the same number of protons but different numbers of neutrons

A

isotopes

110
Q

Atoms with the same number of protons but different numbers of neutrons

A

isotopes

Chemistry (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions