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Particles Flashcards

1
Q

What are particles?

A

Everything is made up of tiny spheres called particles

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2
Q

What is a solid?

A

In the solid state the particles are close together and can only vibrate

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3
Q

What is a liquid?

A

In the liquid state the particles can still touch their neighbours and can move around sliding over each other

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4
Q

What is a gas?

A

In the gas state the particles are spread far apart and move around randomly

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5
Q

What is the volume?

A

The amount of space something takes up

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6
Q

What are properties?

A

How a substance behaves

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7
Q

What is an attraction?

A

The force that pulls particles towards eachother

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8
Q

What is melting?

A

When a solid becomes a liquid

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9
Q

What is evaporating?

A

When a liquid becomes a gas

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10
Q

What is condensation?

A

When a gas becomes a liquid

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11
Q

What is freezing?

A

When a liquid becomes a solid

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12
Q

What is sublimation?

A

When a solid goes directly to a gas

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13
Q

What is pure?

A

A substance made from one type of particle

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14
Q

What is impure?

A

A substance made from two or more different types of particles

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15
Q

What is a mixture?

A

Are impure and can be easily separated

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16
Q

What is a solute?

A

The solid dissolved in a solute e.g sugar

17
Q

What is a solvent?

A

The liquid that dissolves in a solute e.g water

18
Q

What is a solution?

A

The mixture formed by dissolving a solute in a solvent

19
Q

What is dissolving?

A

When the solute becomes evenly spread throughout the solvent

20
Q

What is concentration?

A

The amount of solute dissolved in a solvent

21
Q

What does soluble mean?

A

A substance that can dissolve e.g sugar and water

22
Q

What does insoluble mean?

A

A substance that cannot dissolve e.g sand in water

23
Q

What is filtration?

A

The process by which a solid (insoluble) particles are removed from a liquid or gas

24
Q

What can evaporation be used for?

A

It can be used to separate a soluble solid from a liquid

25
Q

What is diffusion?

A

The movement of a substance from an area of high concentration to a low concentration

26
Q

What is a concentration gradient?

A

The difference in the concentration of a substance between two areas

27
Q

What is the rate of diffusion?

A

How quickly a substance moves from a high to a low concentration it can be affected by the concentration gradient!.

Revision Cards (8 decks)

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