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Science 9 > States Of Matter And Phase Changes > Flashcards

States Of Matter And Phase Changes Flashcards

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0
Q

How does the distillation process make use of phase changes?

A

The original liquid is turned into a gas and is then turned back into a liquid

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1
Q

What is distillation?

A

A process that takes apart different parts of a solution based on their boiling points so that they are separated.

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2
Q

What is a filtrate?

A

The original liquid in distillation

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3
Q

What is distillate?

A

The filtered liquid created after distillation

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4
Q

Are the particles in a solid moving? Explain

A

Yes because of the kinetic theory of matter

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5
Q

What does the kinetic theory of matter say about particles in matter?

A

All particles of matter are in constant motion

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6
Q

How do particles move in a gas?

A

Never at rest

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7
Q

How do particles move in a liquid?

A

More compact than in gas, move more slowly

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8
Q

How do particles move in a solid?

A

Fixed locations, but still move slightly

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9
Q

What is melting?

A

Solid to liquid

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10
Q

What is vaporization?

A

Liquid to has

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11
Q

What is condensation?

A

Gas to liquid

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12
Q

What is freezing?

A

Liquid to solid

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13
Q

What is sublimation?

A

Solid to gas

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14
Q

What is deposition?

A

Gas to solid

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15
Q

What temperature does ice melt?

A

0 degrees C

16
Q

What temperature does water freeze at?

A

0 degrees C

17
Q

What is the boiling point of water?

A

100 degrees C

18
Q

Why and how do boiling temperatures change at higher altitudes?

A

They would change because the atmospheric pressure changes. The boiling point would be lower when the elevation is higher

19
Q

Does temperature increase during melting?

A

No

20
Q

Can both liquid water and steam exist at 100 degrees C?

A

Yes

21
Q

What role does energy play during a phase change?

A

The energy breaks the bonds and pulls the molecules apart

22
Q

What must be changed, temperature or heat energy during melting?

A

Heat energy

23
Q

What is endothermic?

A

The system absorbs energy from its surroundings (energy ENters)

24
Q

What is exothermic?

A

The system releases energy to it’s surroundings (energy EXits)

25
Q

Which three phase changes are endothermic?

A

Melting
Vaporization
Sublimation

26
Q

Which three phase changes are exothermic?

A

Deposition
Condensation
Freezing

Science 9 (8 decks)

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