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The Particle Theory of Matter - Section 7.2 Quiz
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Which statement about the particle theory of matter is true?
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The particles that make up matter are too small to see without a microscope
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When a solid melts its particles no longer exist
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The particles in a liquid have more kinetic energy than the particles in a gas
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A solid stays in one place because its particles are at rest
Which statement is
not
a key point of the particle theory of matter?
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Particles naturally repel one another
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All matter is made up of particles
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There are spaces between particles
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The particles of matter are in constant motion
Which of the physical states of water contains particles with the lowest kinetic energy?
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Ice
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Water
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Melting ice
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Steam
When any kind of gas such, as nitrogen or carbon dioxide, is heated, it
?
expands.
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explodes.
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evaporates.
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sublimates.
When an ice-cold steel bar is placed right next to and touching a red-hot steel bar, what happens?
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The particles in the cold steel bar vibrate faster
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The particles in both steel bars vibrate slower
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The hot steel bar melts
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The steel bars repel each other and slide apart
The particles in a solid that is melting move farther and farther apart because
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the particles have more energy and bump into each other more often.
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the particles repel each other more intensely.
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the particles begin to lose their shape.
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the particles slow down.
The force of attraction is greatest between the particles of a
?
solid.
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pure substance.
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gas.
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mixture.
The opposite of sublimation is
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deposition.
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condensation.
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evaporation.
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solidification.
On a cooking show you watch a chef add some wine to a simmering stew.
He then turns up the heat so that the alcohol in the wine can boil off. This is an example of which change of state listed below?
?
Evaporation
?
Sublimation
?
Liquefaction
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Melting
Which statement about changes in states of matter is false?
?
Of all substances, only water can exist in any state of matter
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An example of sublimation is an ice cube that slowly shrinks in the freezer
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Energy is always required to change the state of a substance from solid to gas
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Pure substances as well as mixtures can change states
OK
