P6.2 - States Of Matter (Finished) Flashcards Preview

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Flashcards in P6.2 - States Of Matter (Finished) Deck (16)
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1
Q

Changes of state are an example of what type of change?

A

Physical changes

2
Q

Why are changes of state an example of physical changes?

A

Because no new substances are produced

3
Q

What does the conservation of mass tell us?

A

When a substance changes state, the number of particles in the substance stays unchanged, and therefore also the mass

4
Q

What happens to a substance when a physical change is reversed?

A

It recovers it’s original properties

5
Q

Which state(s) of matter have fixed volumes?

A

Liquid and solid

6
Q

Which state(s) of mater can flow?

A

Liquid and gas

7
Q

Do liquids have a fixed shape?

A

No, they fit the container shape

8
Q

Do gases fit the container shape?

A

No they fill it

9
Q

Order solid gas liquid in density (high to low)

A

Solid, liquid, gas

10
Q

Order solid, liquid, gas in amount of energy the particles have (high to low)

A

Gas, liquid, solid

11
Q

Why is the density of a gas much less than that of a solid or liquid?

A

The particles of a gas move about at random so on average they are much further appart

12
Q

What is the change of state from gas to solid called?

A

Deposition

13
Q

What is the change of state from solid to gas called?

A

Sublimation

14
Q

Why can a liquid flow?

A

The particles of a substance in its liquid state are in contact with each other but move about at random which lets them flow

15
Q

Why is the density of a gas much less than that of a solid or liquid?

A

It’s particles move about at random at great speed so they are on average much further appart than those in a liquid

16
Q

The particles of a substance in its ___ state are held ____ each other in ___ positions.

A

Solid, next to, fixed