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IGCSE Chemistry > States of Matter > Flashcards

States of Matter Flashcards

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1
Q

what is the definition of fluid?

A

Gas or liquid

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2
Q

what is matter?

A

any substance that has a mass and volume

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3
Q

What are the three states of matter?

A

Solid, liquid, and gas

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4
Q

What factors influence the state of matter in a substance?

A

Temperature and Pressure

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5
Q

Any matter can be liquid, solid, or gas (True/False)

A

True

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6
Q

Which two states of matter have a fixed volume?

A

Solid and Liquid

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7
Q

which state of matter has a low density?

A

Gas

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8
Q

which state of matter has a definite shape?

A

Solid

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9
Q

What is the melting point of a substance?

A

The temperature that a substance must reach to turn from a solid to a liquid

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10
Q

What is the boiling point of a substance

A

The temperature that a substance must reach to turn from a liquid to a gas

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11
Q

What is it called when a gas turns into a liquid?

A

condensation

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12
Q

What is it called when a liquid turns into a solid?

A

freezing

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13
Q

What is it called when a gas turns into a solid?

A

sublimation

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14
Q

What is it called when a solid turns into a gas?

A

deposition

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15
Q

What is evaporation?

A

Change of state from a liquid into a vapour at a temperature below the boiling point

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16
Q

Where does evaporation occur?

A

At the surface of the liquid

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17
Q

What is volatility?

A

The property of how easily a liquid evaporates

18
Q

What is a pure substance?

A

A substance made of one type of particle (element or compound)

19
Q

Pure substances have boiling points that are not exact (True/False)

A

False

20
Q

What is an atom?

A

The smallest unit of matter that retains its properties

21
Q

What is a molecule?

A

A physically OR chemically bonded group of atoms

22
Q

What are (intermolecular) forces?

A

the forces that occur between all molecules, causing them to attract each other

23
Q

What is a mixture?

A

Two or more substances mixed together but not chemically bonded

24
Q

What is a solution?

A

A result of a solute dissolving in a solvent

25
Q

What is the solvent in a solution?

A

The solvent is the substance (liquid) that dissolves the solute

26
Q

What is the solute in the solution?

A

The solid or gas that dissolves in the solvent to make the solution.

27
Q

What is a suspension?

A

An insoluble solute in a solvent

28
Q

What does soluble / insoluble mean?

A

Able / not able to dissolve

29
Q

what does it mean if two liquids are miscible?

A

They are able to dissolve in each other (mix)

30
Q

What does it mean if a solution is saturated?

A

It means that no more solute can dissolve in the solution.

31
Q

What is measured by Solubility?

A

How much of a specific solute can dissolve in a specific solvent at a specific temparature

32
Q

What does the concentration of a solution mean?

A

How much of a solute is in a solution (measured in g/100cm^3

33
Q

Define diffusion

A

Particles moving in random directions, causing them to spread and mix

34
Q

Water is an atom (True/False)

A

False

35
Q

Is seawater an element, a compound, or a mixture?

A

A mixture

36
Q

Is it possible to easily separate a mixture?

A

Yes

37
Q

What is the unit of measurement for solubility?

A

g/100cm^3

38
Q

If the solubility of copper sulfate is 20g/100cm^3, how much copper sulfate will dissolve in 40cm^3?

A

8g

39
Q

If the solubility of copper sulfate in water is 20g/100cm^3, how much water does it take to dissolve 30g of copper sulfate?

A

150cm^3

40
Q

What is a compound?

A

A chemically bonded group of atoms

41
Q

is CuCO3 a compound?

A

Yes, all molecules with formulas and more than one type of atom are

IGCSE Chemistry (22 decks)

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