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Exams grade 8 GCSE students > States of matter > Flashcards

States of matter Flashcards

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1
Q

describe the structure of solid?

A

describe the structure of solid:

  • packed closely
  • Can’t move
  • small vibrations
  • Stong force of attraction
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2
Q

describe the structure of liquid?

A

describe the structure of liquid:

  • mostly touching
  • can move over each other
  • less dense
  • little vibration
  • less effective force of attraction
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3
Q

describe the structure of Gas?

A

describe the structure of gas?

  • well separated
  • move freely
  • strong and high vibration
  • almost no force of attraction
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4
Q

Which state of matter has the highest kinetic energy?

A

Which state of matter has the highest kinetic energy?

- Gases

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5
Q

what happens when a solid is heated?

A

what happens when a solid is heated?

- The particles will vibrate extremely fast so the force of attraction isn’t strong enough to hold them

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6
Q

solid to liquid? liquid to solid?

A

solid to liquid? liquid to solid?

- melting and freezing

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7
Q

liquid to gas? gas to liquid?

A

liquid to gas? gas to liquid?

- evaporation, boiling and condensing

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8
Q

solid to gas? gas to solid?

A

solid to gas? gas to solid?

- sublimation and deposition

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9
Q

solid to gas? gas to solid?

A

solid to gas? gas to solid?

- sublimation and deposition

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10
Q

example of a sublimation?

A

example of a sublimation?

- Carbon dioxide

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11
Q

how does evaporation happen?

A

how does evaporation happen?
- when the liquid particles move very fast on the surface of the liquid that it’ll overcome the force of attraction between the particles and break away to form the gas

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12
Q

What’s the substance’s temperature below its melting point?

A

What’s the substance’s temperature below its melting point?

- solid

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13
Q

What’s the substance above its melting point?

A

What’s the substance above its melting point?

- gas

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14
Q

What’s a substance between the melting point and boiling point?

A

What’s a substance between the melting point and boiling point?
- liquid

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15
Q

State if this statement is true or false?

- Each element has the same melting and boiling point with the room temperature

A

State if this statement is true or false?
Each element has the same melting and boiling point with the room temperature
- False

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16
Q

What’s diffusion?

A

What’s diffusion?

- the spreading out of particles where there’s a high concentration to low concentration

17
Q

define a solvent?

A

define a solvent?

the solvent is a liquid substance that can dissolve on other substances

18
Q

why will it take the particles in liquid less time to diffuse?

A

why will it take the particles in liquid less time to diffuse?

  • because particles in a liquid move slower than gas
  • particles in a liquid are closer together than gas so it’ll take more time
19
Q

define a solution?

A

define a solution?

- which a liquid and solid substances dissolve together

20
Q

How does making a solution form?

A

How does making a solution form?
- the attractive force between the partials in a solute is being broken down and the new attractive force is being formed

21
Q

define a solute?

A

define a solute?

- is a solid substance that dissolves in a liquid

22
Q

Define a saturated solution?

A

Define a saturated solution?
- when a solution contains the maximum amount of solute dissolved in a solvent, the solvent will have small solute particles down the cup, etc.

23
Q

Define solubility?

A

Define solubility?

- ability of a substance to mix into a liquid

24
Q

explain the difference between evaporation and boiling?

A

explain the difference between evaporation and boiling?

- Evaporation can happen at any temperature but boiling occurs at a certain tempreture

25
Q

Name each movement of state of matter?

A

Name each movement of state of matter?

  • solid = vibrate around fixed positions
  • liquid = move around each other
  • gas = fast in all directions

Exams grade 8 GCSE students (2 decks)

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