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Chem Chapter 2-Review
Chem Chapter 2-Review
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1
A firecracker exploding is an example of...
Exothermic
Endothermic
Extensive
Intensive
2
A substance that consists of only one type of matter is called a(n
Mixture
Pure substance
Solution
single matter substance
3
The disappearance of dry ice left out in a dish is an example of __________
evaporation
sublimation
melting
condensation
4
A mixture that consists of two or more materials in distinct phases is called
homogeneous mixture
Heterogeneous mixture
5
According to the Creation Mandate, we are to be wise with resource and have dominion over the earth
False
True
6
Chemical and physical processes that absorb thermal energy are called
Intensive
Exothermic
Extensive
Endothermic
7
All matter is made of particles in constant motion andthat their motion increases with the addition of energy is the
Kinetic-molecular theory
Entropy
Theory of relativity
1st Law of thermodynamics
8
H202 is an....
element
monatomic element
compound
Polyatomic element
9
Water vapor forming as dew on grass is....
evaporation
deposition
condensation
sublimation
10
The Average KE of all particles in a sample is its temperature
False
True
11
An elements name and abbreviation aways have the same letter
True
False
12
The law that states that all natural processes tend toward the highest entropy and minimumusable energy
Newtons 1st Law
3rd Law of Thermodynamics
1st Law of Thermodynamics
2nd Law of Thermodynamics
13
Gold melting in a hot flame is a...
physical process
chemical process
Reaction
Subtrate
14
Reactions that absorb energy are exothermic.
True
False
15
The energy in a system becomes less usable when energy
increases.
decreases.
Remains constant
fluctuates.
16
Which form of matter has fast-moving and widely spaced particles?
Gas
Liquids
Solids
Mixtures
17
The SUM of KE of particles in a object is called...
potential energy
chemical energy
temperature
thermal energy
18
Oxygen (O2) is a __________
Diatomic element
polyatomic element
Monatomic element
compound
19
How many atoms of oxygen are in Al2(SO4)3?
4
12
7
10
20
A homogeneous mixture is also called a(n) __________.
solution
compound
element
Pure Substance
21
Which of the following is not one of the six common forms of energy?
mechanical
chemical
dynamic
nuclear
22
Chemistry is the study of chemicals and just chemicals
True
False
23
Thermal energy always flows from regions of higher temperature to those of lowertemperature.
False
True
24
Which of the following is not a characteristic of solids?
ease of compressibility
particles rigidly held in a fixed volume
fixed volume
relatively little kinetic energy
25
. The kinetic-molecular theory is a model that describes the __________ ofparticles in matter.
mass
temperature
composition
movement
26
A naturalist cannot explain the origin of matter and energy
False
True
27
Temperature measures the total kinetic energy in a sample.
False
True
28
The origin of matter can be explained by biblical text
True
False
29
Diffusion is the movement of particles from high concentration to low concentration.
False
True
30
Matter can not be created or destroyed
False
True
31
Solid has closely spaced particles
True
False
32
Dry ice has a temperature of 196 K. What is the temperature of dry ice on theCelsius scale?
−77
−92
−71
−95
33
The first law of thermodynamics is also called the law of __________.
Entropy
Thermal energy
cause and effect
conservation of mass-energy
34
The measure of the dispersal of energy in a system is known as __________
Entropy
Dispersal
Enthalpy
Spread theory
35
Heat is the term used for the movement of__________ energy.
Potential
Increased
Kinetic
Thermal
36
Iron weights rusting in humidity is a....
Physical Process
exothermic
endothermic
Chemical Process
37
A substance can experience a change of state as __________ energy is added to orremoved from it.
Kinetic
potential
Thermal
Chemical
38
Heat is the flow of thermal energy between regions
True
False
39
Convert room temperature 22C to Kelvin
292 K
251 K
295 K
-251 K
40
The ability to do work is
hard
Caloric
Energy
A skill
41
Gas has enough KE to completely overcome all attractive forces.
False
True
42
A compound is a pure substance that cannot be broken down into simpler substancesby ordinary chemical means
with exception to radiation
False
with exception to electromagnetic forces
True
43
When Thermal energy is added to a substance, the Substances KE increases resulting in....
Entropy
Both Red(triangle) and Yellow(circle)
A temperature increase
a POSSIBLE phase change
44
Particles at absolute zero
have minimal movement
are moving fast
sublimate
are phase changing
45
Change of state from solid to gas without forming liquid is know as...
deposition
sublimation
condensation
evaporation
46
studies the movement and conversion of energy, especially thermal energy.
thermodynamics
Biology
History
nuclear science
47
After boiling water for a long period of time, you notice that the water level hasdecreased, indicating that __________
vaporization
deposition
condensation
sublimation
48
Change of state results from the removal or addition of thermal energy
False
True
49
Copper is used more often than aluminum for electric wires. More than anythingelse, this suggests that copper is
more conductive
more ductile
more malleable
denser
50
A Christian and naturalist agree that energy can be converted into other forms of energy
True
False
