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Year 8 > Chemistry > Flashcards

Chemistry Flashcards

1
Q

Which out of the 3 types of particles are fixed

A

Solid

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2
Q

Which out of the 3 types of particles can flow

A

Liquid and gas

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3
Q

Which out of the 3 types of particles can be squashed

A

Gas

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4
Q

Which out of the 3 types of particles have a fixed volume

A

Solid, liquid

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5
Q

Which out of the 3 types of particles are the most dense

A

Solid

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6
Q

What are the characteristics of a solid

A

Touching
Fixed position
Uniform arrangement
Can vibrate

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7
Q

What are the characteristics of a liquid

A

Touching
No fixed position
Flow
Random arrangement

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8
Q

What are the characteristics of a gas

A 
Fills container
Random arrangement
Flows
No fixed position
Not touching
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9
Q

What are particles moving around described as

A

Kinetic energy

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10
Q

What is a solid into liquid called

A

Melting

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11
Q

What is a liquid into gas called

A

Evaporating

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12
Q

What is a gas into a liquid

A

Melting

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13
Q

What is a liquid into a solid

A

Freezing

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14
Q

What is a solid into a gas

A

Sublimation

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15
Q

What is a gas into a solid

A

Deposition

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16
Q

What is melting point?

A

0 degrees

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17
Q

What is evaporation

A

A liquid is so hot that particles start to SEPERATE to a gas due to the build up of energy

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18
Q

What is condensing

A

When a gas is so cold the energy starts to break up and making the forces stronger

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19
Q

What is diffusion

A

Diffusion is the process of changing a high concentration substance to a low concentration substance

20
Q

What happens if gas is put into a container

A

It pushes against the walls, and the particles exert a pressure when they hit the wall, creating a pressure

21
Q

Neutron

A

No charge
Inside the nucleus
Mass - 1

22
Q

Proton

A

Has a charge
Inside the nucleus
MAss - 1

23
Q

Electron

A

Negative charge

Mass - 0

24
Q

Where does diffusion occur

A

Mostly in gasses, liquids

25
Q

Where does diffusion happen quicker

A

In warm tempature (as it increases the energy) and in gasses (gas has more energy and moves quicker)

26
Q

What is a mixture

A

Two or more substances mixed together but not chemically joined

27
Q

What is a solution

A

Special type of mixture made when a solid dissolves and mixes with a liquid

28
Q

What are suspensions

A

Where solids are insoluble and mixed with a liquid

29
Q

Solvent

A

A liquid with dissolves a solute

30
Q

Solute

A

A soluble solid which can be dissolved in a solvent

31
Q

Soluble

A

Can be dissolved in a solvent

32
Q

Filtration

A

Seperating substances to create a filtrate and residue

33
Q

Evaporation

A

A way to separate a solid dissolved in a liquid by the liquid turning to a gas

34
Q

Chromatography

A

Used to separate different substances dissolved in the same solvent

35
Q

Liebig condenser

A

Used to purify water

36
Q

Metal properties

A 
Shiny
Sonorous
Malleable
Dense
Electricity conductor
High melting point
Ductile
37
Q

Non metal properties

A

Full
Low melting point
Brittle
Poor conductors of heat

38
Q

How many types of atoms are elements made of

A

1

39
Q

How many types of atoms are compounds made of

A

2 or more chemically joined

40
Q

How to write simple compounds

A

Write the metal

Write the non metal changing the ending to ide

41
Q

How many types of atoms is a mixture made of

A

2 or more mixed together not chemically

42
Q

Compounds

A

Contain more than 2 elements

43
Q

How to write 2 elements plus oxygen

A

Write the metal

Ending of the non metal changes to ate

44
Q

What are the signs of a chemical reaction

A

Facts

45
Q

What is the neutralisation word equation

A

Acid + base = salt + water

Year 8 (4 decks)

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