Changes of State — Unit test Answers
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A cylinder at left has balls stacked near its bottom with an arrow leading to a cylinder at right with balls evenly spaced throughout the cylinder.
A
condensationB
evaporationC
sublimationD
deposition22
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What happens if atoms lose energy during a change of state?
A
The atoms are pushed apart by repulsive forces and become less organized.B
The atoms are pulled together by attractive forces and become less organized.C
The atoms are pushed apart by repulsive forces and become more organized.D
The atoms are pulled together by attractive forces and become more organized.23
Part of one row of the periodic table is shown.
A
tin (Sn)B
antimony (Sb)C
tellurium (Te)D
iodine (I)24
When water (H2O) freezes into ice, some of the properties have changed. What stays the same?
A
identity of the H2OB
energy of the H2OC
arrangement of the H2OD
property of the H2O25
Liquid plastic is frozen in a physical change that increases its volume. What can be known about the plastic after the change?
A
Its mass will increase.B
Its density will increase.C
Its mass will remain the same.D
Its density will remain the same.Did you find these answers helpful?
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