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Review for Unit 2 Nature of Matter Test Flashcards | StudBud
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Review for Unit 2 Nature of Matter Test
Review for Unit 2 Nature of Matter Test
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1
Made of 2 or more substances, elements, or compounds that are in the same place but not chemically combined.
Mixture
Element
Compound
Molecules
2
The pH scale measures _____________________.
the concentration of an acid.
the strength of an acid.
the strength of hydrogen ions.
the concentration of hydrogen ions.
3
Table Salt (NaCl) is an example of what type of matter?
heterogenous mixture
compound
homogenous mixture
element
4
Acids are described as corrosive because they _____________.
taste bitter
turn litmus paper blue
''eat away" or "breakdown" other materials
feel slippery
5
What phase change is taking place at A
Freezing
Melting
Evaporation
Condensation
6
One example of a physical property is
reactivity to light
combustibility
ability to catch on fire
melting point
7
What model of matter is number 2?
mixture
compound
element
8
What does a neutralization reaction produce?
acid and water.
acid and base.
salt and water
base and salt.
9
What state of matter does number 4 show?
solid
liquid
gas
plasma
10
What phase change is taking place at B
Melting
Freezing
Condensation
Evaporation
11
What model of matter is number 1?
compound
element
mixture
12
Which statement is NOT part of the Kinetic Theory of Matter?
Particles are in constant, random motion
Matter is anything that has temperature and takes up space.
Particles collide with each other and walls of their container.
All matter is composed of particles.
13
Groups of 2 or more atoms held together by chemical bonds.
Element
Molecules
Mixture
Compound
14
What phase change is taking place at C
Freezing
Melting
Evaporation
Condensation
15
A characteristic that can be observed or measured without changing the sample’s composition.
Chemical Property
Physical Property
16
What is the most basic of this substances?
Lemon
Blood
Baking Soda
Milk
17
A chemical substance that is made up of two or more different kinds of atoms bonded together.
Molecules
Compound
Mixture
Element
18
Neutralization is a reaction between a(n) ____________________.
acid and water.
acid and base.
salt and water
base and salt.
19
When a ___________ occurs, new substances with different chemical and physical properties from the original are created.
Chemical Change
Physical Change
20
The air around you is considered what type of matter?
element
homogenous mixture
heterogenous mixture
compound
21
Matter is defined as
Anything that has mass or takes up space
Anything that has mass and takes up space
Anything that has mass and temperature
Physical substance in general, as distinct from mind and spirit
22
When leaves change color in the fall, this is an example of a?
Chemical Change
Physical Change
23
Sublimation of dry ice is a?
Physical Change
Chemical Change
24
The ability of a substance to combine with or change into one or more other substances is a
Chemical Property
Physical Property
25
During a ______________, no new substances are formed.
Physical Change
Chemical Change
26
What is neutral of this substances?
Blood
Water
Milk
Baking Soda
27
Which is an example of a chemical property?
Freezing
Melting
Sublimation
Flammability
28
A pure substance that cannot be broken down by simple chemical and physical processes.
Compound
Mixture
Molecules
Element
29
What model of matter is number 5?
element
mixture
compound
30
What is an Exothermic change?
When heat is released or given off.
When heat is absorbed or taken in.
31
What is the most acidic of this substances?
Milk
Blood
Baking Soda
Water
32
State with definite shape and volume.
gas
solid
liquid
33
State with indefinite shape and definite volume.
solid
liquid
gas
34
What is an Endothermic change?
When heat is absorbed or taken in.
When heat is released or given off.
35
What state of matter does number 2 show?
solid
liquid
plasma
gas
36
State with indefinite shape and volume.
liquid
solid
gas
37
A chocolate-chip cookie is considered what type of matter?
compound
homogenous mixture
heterogenous mixture
element
38
The Law of _________________ of Mass states that matter cannot be created or destroyed in ordinary chemical reactions.
Equivalence
Restoration
Preservation
Conservation
