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Chemistry > States of Matter > Flashcards

States of Matter Flashcards

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1
Q

Matter

A

Anything that takes up space and has a mass.

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2
Q

Mass

A

The measure of the amount of matter in an object.

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3
Q

States of matter

A

The form that matter exists in (solid, liquid or gas).

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4
Q

Solid

A

Cannot flow, fixed shape.

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5
Q

Liquid

A

Can flow, can change shape.

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6
Q

Gas

A

Particles are very far apart, do not have a fixed volume.

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7
Q

Particles

A

Small parts that make up everything.

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8
Q

Particle theory

A

The belief that everything is made up of very small particles.

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9
Q

Viscosity

A

The flow rate of liquid.

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10
Q

Diffusion

A

The spreading out of particles to fill the space that they are in.

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11
Q

Melting

A

Solid to liquid.

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12
Q

Melting

A

Solid to liquid.

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13
Q

Boiling

A

Liquid to gas.

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14
Q

Physical change

A

No new substance is formed, there is no change in mass and the reraction can be easily reversed.

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15
Q

Melting point

A

The temperature at which a substance changes from a solid to a liquid.

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16
Q

Evaporation

A

When the particles of a liquid gain so much energy they leave the surface and form a gas.

17
Q

Boiling point

A

The temperature at which a liquid becomes a gas.

18
Q

Condensation

A

Cooling a gas takes it’s energy, making the particles move closer and become a liquid.

19
Q

Sublimation

A

When some substances are heated, they do not become a liquid, they become a gas straight away.

20
Q

Freezing

A

The temperature at which a liquid changes to a solid.

21
Q

Compression

A

Happens when particles are forced closer together to make them fit into a smaller space.

22
Q

Factors that Affect Diffusion (3)

A

Temperature, Size of particles and the State of the Diffusing substance.

23
Q

Product Life Cycle (5 stages)

A 
Extraction
Manufacturing
Packaging and distribution
Product use
End of life disposal
24
Q

Carbon footprint

A

The total greenhouse gas emmissions caused by an organisation, event, product or individual.

25
Q

Physical change

A

Matter changes shape or state but no new substance is formed, e.g: boiling

26
Q

Chemical change

A

A new substance is formed, e.g: Burning wood

27
Q

Law of conservation of mass

A

States that matter cannot becreated or destroyed but can change from one form to another. The total mass of matter stays the same.

Chemistry (8 decks)

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