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Science > Matter And Mixtures > Flashcards

Matter And Mixtures Flashcards

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1
Q

Matter

A

Anything that occupies space and has mass

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2
Q

Mass

A

Is the amount of matter in an object

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3
Q

3 states of matter

A

Solids liquids and gasses

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4
Q

Property’s of solids

A

Solids have a definite shape and volume
They can not be compressed
They can’t flow or be pored

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5
Q

Property’s of liquids

A

They have no define shape or volume
They can’t be compressed
They can flow or be pored

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6
Q

Property’s of gases

A

Gases have no definite shape or volume
Gases can be compressed and can flow

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7
Q

Heat energy

A

in order for a substance to change state
(From a solid to a liquid, or liquid to a gas) it
needs heat energy

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8
Q

Latent heat

A

As a substance changes state it uses latent heat there is no change to temperature but the state of the material changes

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9
Q

Melting point

A

Is when both the solid and liquid state exist together changing from a solid to a liquid

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10
Q

Boiling point

A

Is a liquid is when evaporation begins to happen throughout the liquid changing from a liquid to a gas

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11
Q

Condensation

A

Is the changing of a gas to a liquid

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12
Q

Diffusion

A

Is the movement of particles from an area of high concentration to an area of low concentration eg if u spray something in one corner of a room it will spread to the rest of the room

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13
Q

Physical change

A

No change in particles just the particle arrangement and energy easy to change eg mixing water and salt

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14
Q

Chemical change

A

A chemical reaction Takes place and a new substance is formed very difficult to reverse eg burning a match

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15
Q

During a chemical reaction

A

The atoms rearrange to form a new substance might be seen by colour change temperature change light being emitted or bubbles

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16
Q

Law of conservation of mass

A

Matter can be changed from one form to another duiring physical and chemical changes there is no overall change in mass

17
Q

Mixture

A

A mixture
consists of two or more
substances
mingled together but not
chemically combined e.g. sand and
water.

18
Q

There are four methods of separating
mixtures:

A

Filtration
Evaporation
Distillation
Chromatography

19
Q

Filtration

A

Used to separate small insoluble
solids (do not dissolve in a liquid)
from a liquid by using filter paper
and a funnel to trap the solids.

20
Q

Evaporation

A

Used to separate soluble solids
(dissolve in liquids) from a
solution by evaporating off the
liquid to leave the solids. E.g. salt
water.

21
Q

Distillation

A

Used to separate two liquids with
different boiling points such as
alcohol (boils at 780) and water
(boils at 100 °). Also used to
separate a soluble solid from a
liquid (e.g. seawater) to give a pure
sample of each.

22
Q

Mixture

A
  • consists of two or more
    substances
    mingled together but not
    chemically combined
23
Q

Filtration

A

used to separate an
insoluble solid and a liquid

24
Q

Insoluble

A

does not dissolve in a
liquid

25
Q

Soluble

A
  • dissolves in a liquid
26
Q

Residue

A
  • the soil left in the filter paper after
    filtration
27
Q

Filtrate

A
  • the clean water that comes after
    filtration
28
Q

Evaporation

A
  • used to separate a soluble solid
    from a liquid e.g. salt and water
29
Q

Solvent

A

the liquid that a solid is dissolved
into

30
Q

Solute

A

the solid that is left behind after
evaporation

31
Q

Distillation

A

method of separation used to
separate a soluble solid and its solvent, or two
miscible liquids with different boiling points
Miscible - Liquids that mix together e.g.
alcohol and water

32
Q

Liebig condenser

A

piece of equipment used in
distillation in which cool water flows to
condense steam to water

33
Q

Distillate

A

clean water at the end of distillation

34
Q

Chromatography

A

used to separate mixtures
of substances that are in a solution e.g. dyes in
ink

35
Q

Reactant:

A

chemicals that react together in a
chemical reaction

36
Q

Products:

A

the substances formed after a
chemical reaction

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