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Chemistry > Mixtures and other things > Flashcards

Mixtures and other things Flashcards

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1
Q

Mixtures are substances that are not

A

Chemically joined up

Such as the gases in air

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2
Q

Name a common method of making a mixture

A

Dissolution

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3
Q

The solid being dissolved is called

A

The solute

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4
Q

The liquid a solid is dissolved into is called

A

The solvent

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5
Q

The mixture of solute and solvent is called

A

The solution

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6
Q

What does soluble mean?

A

It will dissolve

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7
Q

What is it called when you cannot dissolve any more solute at that temperature.

A

Saturated

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8
Q

How do you increase the solubility?

A

Increase the temperature

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9
Q

Why does more solute dissolve in solvent at higher temperatures ?

A

Because particle move faster

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10
Q

Can solute dissolve in all solvents?

A

No

Eg salt dissolves in water but not petrol

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11
Q

Name 4 separation techniques to separate out mixtures.

A

Filtration
Evaporation
Chromatography
Distillation

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12
Q

Name 3 uses of chromatography

A

Separating inks
Identifying blood samples
Investigating chlorophyll

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13
Q

Simple distillation can be used for separating

A

A liquid from a solid

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14
Q

Fractional distillation separates out

A

A. Mixture of liquids

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15
Q

Give an example of simple distillation

A

Separating water from seawater

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16
Q

Give 2 examples of fractional distillation

A

Distilling whisky

Separating crude oil from petrol

17
Q

Name some molecules

A

O2
H2
N2

That is, the same atoms are joined

18
Q

Name some compounds

A

Water H2O

Iron sulfide FeS

19
Q

What is solubility?

A

A measure of how much solute is dissolved

20
Q

What is the symbol for sodium chloride (salt)?

A

NaCl

21
Q

Does a compound behave in the same way as the constituents ?

A

No

Iron is magnetic but iron sulfide FeS is not magnetic

22
Q

If a compound breaks apart, the new substances are called

A

Products

23
Q

What is the symbol for magnesium?

A

Mg

Chemistry (6 decks)

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