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Since > Mattes And Mixtures > Flashcards

Mattes And Mixtures Flashcards

1
Q

Matter

A

Anything that occupies space and has mass

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2
Q

Mass

A

Is amount of matter in an object

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3
Q

3 states of matter

A

Solids liquid gases

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4
Q

Properties of solids

A

Solids have a definite shape
Solids have a definite volume
Solids cannot be compressed
Solids cannot flow

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5
Q

Properties of liquids

A

Liquids have no definite shape
Liquids have a definite volume
Liquids cannot be compressed
Liquids can flow

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6
Q

Gases

A

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

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7
Q

Heat energy

A

In order for a substance to change state from a solid to liquid or liquid to gas it needs heat energy

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8
Q

The melting point is when both the soiled and liquid

A

state exist together changing from a soiled to a liquid

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9
Q

Diffusion

A

It spreads a cross a room

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10
Q

Plasma

A

Plasma is the fourth state of matter like gas but can conduct electricity

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11
Q

Physical change

A

No change in particles just the particles arrangement and energy easy to reverse

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12
Q

Chemical change

A

A chemical reaction takes place and a new substance is formed very difficult to reverse

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13
Q

During a chemical reaction

A

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

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14
Q

Law of conservation of mass

A

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

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15
Q

Mixture

A

Consists of two or more substance mingled together but not chemically combined like sand and water

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16
Q

There are four methods of separating mixtures

A

1 filtration
2 Evaporation
3 Distillation
4 Chromatography

17
Q

Filtration

A

Used to separate small do not dissolve in a liquid from a liquid by using filter paper and a funnel to trap the solids eh sand and water

18
Q

Evaporation

A

Used to separate solutions by evaporating off the liquid to leave the solids eg salt and water

19
Q

Distillation

A

Used to separate two liquids with different boiling points such as alcohol (boils at 78o) and water (boils at 100 o). Also used to separate a soluble solid from a liquid (e.g. seawater) to give a pure sample of each.

20
Q

Chromatography

A

Used to separate a mixture of dissolved substances in a solution. E.g. the different colours in a black marker.

21
Q

Mixture

A

Consists of two or more substances mingled together but not chemically

22
Q

Filtration

A

used to separate an insoluble solid and a liquid

23
Q

Insoluble

A

does not dissolve in a liquid

24
Q

Soluble

A

dissolves in a liquid

Since (2 decks)

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