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ChemComm Unit 2A
Test Description: ChemComm
Instructions: Answer all questions to get your test result.
1) a property that can be observed or measured without changing the identity of the sample of matter
A
group or family
B
physical property
C
chemical property
D
atomic number
2) a change in matter in which the identity of the material involved does not change
A
physical change
B
isotopes
C
metalloids
D
chemical change
3) a property only observed or measured by changing the chemical identity of a sample of matter
A
isotopes
B
physical property
C
atomic number
D
chemical property
4) an interaction of matter that results in the formation of one or more new substances
A
physical change
B
chemical change
C
nonmetal
D
atomic mass
5) a chemical reaction with oxygen gas that produces thermal energy and light; burning
A
combustion
B
malleable
C
luster
D
brittle
6) a property of a material that permits it to be stretched into a wire without breaking
A
ductile
B
luster
C
brittle
D
combustion
7) the reflection of light from the surface of a material
A
brittle
B
luster
C
ductile
D
combustion
8) a material possessing properties such as luster, ductility, conductivity, and malleability
A
nonmetal
B
isotopes
C
metalloids
D
metal
9) a material possessing properties such as brittleness, lack of luster, and nonconductivity; nonmetals are often insulators
A
nonmetal
B
metalloids
C
ductile
D
metal
10) materials with properties intermediate between those of metals and nonmetals
A
alkali metal family
B
halogen family
C
metalloids
D
isotopes
11) a material that allows electricity to flow through it
A
halogen family
B
conductor
C
isotopes
D
brittle
12) a material possessing properties such as brittleness, lack of luster, and nonconductivity
A
metalloid
B
isotopes
C
metal
D
nonconductor
13) the property of a material that permits it to be flattened without shattering
A
ductile
B
luster
C
malleable
D
brittle
14) a property of a material that causes it to shatter under pressure
A
ductile
B
malleable
C
brittle
D
luster
15) the number of protons in an atom
A
atomic number
B
mass number
C
isotopes
D
group or family
16) the sum of the number of protons and neutrons in the nucleus of an atom of a particular isotope
A
mass number
B
group or family
C
atomic number
D
isotopes
17) atoms of the same element with differing numbers of neutrons
A
nonconductor
B
halogen family
C
isotopes
D
alkali metal family
18) a vertical column of elements in the periodic table
A
isotopes
B
atomic number
C
group or family
D
metalloids
19) the group of elements consisting of lithium, sodium, potassium, rubidium, cesium, and francium
A
alkali metal family
B
halogen family
C
isotopes
D
nonmetal
20) the group of elements consisting of fluorine, chlorine, bromine, iodine, and astatine
A
isotopes
B
metalloids
C
halogen family
D
alkali metal family
*select an answer for all questions
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