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11th Grade Chemistry
Test Description: Chapter 2 Test Vocabulary
Instructions: Answer all questions to get your test result.
1) A measure of the average kinetic energy of matter (measured in degrees).
A
formula
B
entropy
C
heat
D
temperature
2) The temperature at which all molecular motion theoretically would stop.
A
absolute zero
B
endothermic
C
exothermic
D
entropy
3) A neutral particle with a centrally located nucleus surrounded by electrons; the smallest unit of an element.
A
molecule
B
compound
C
formula
D
atom
4) A process that changes the identity of matter.
A
physical change
B
entropy
C
chemical change
D
physical property
5) A substance that consists of atoms of different substances chemically bonded together.
A
mixture
B
atom
C
element
D
compound
6) A substance that cannot be broken down by ordinary chemical means into a simpler (and more stable) substance.
A
formula
B
compound
C
element
D
mixture
7) The ability to do work.
A
energy
B
physical property
C
heat
D
entropy
8) A process that absorbs heat energy
A
homogeneous
B
endothermic
C
heterogeneous
D
exothermic
9) The measure of randomness or disorder in a system.
A
entropy
B
heat
C
formula
D
temperature
10) A process that releases heat energy.
A
endothermic
B
exothermic
C
homogeneous
D
heterogeneous
11) A combination of chemical symbols and subscripts that tells the number and kinds of elements in a compound.
A
formula
B
mixture
C
compound
D
element
12) Thermal energy in transit from one object to another.
A
temperature
B
entropy
C
energy
D
heat
13) A mixture composed of two or more distinct substances, unevenly blended.
A
heterogeneous
B
exothermic
C
homogeneous
D
endothermic
14) A mixture of two or more distinct substances, evenly blended.
A
homogeneous
B
heterogeneous
C
exothermic
D
endothermic
15) Two or more covalently bonded atoms found as a distinct unit.
A
mixture
B
physical property
C
molecule
D
element
16) Anything that occupies space and has mass.
A
formula
B
energy
C
matter
D
heat
17) Two or more substances physically combined with no definite proportions.
A
atom
B
element
C
compound
D
mixture
18) A property of matter that can be measured or observed without changing the identity of the matter.
A
physical property
B
endothermic
C
chemical property
D
exothermic
19) An process that changes the physical properties of a substance without changing its identity.
A
chemical change
B
endothermic
C
exothermic
D
physical change
20) A substance that is made up of only one kind of particle and has uniform composition.
A
pure substance
B
entropy
C
formula
D
mixture
*select an answer for all questions
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