Topic 2 Flashcards

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1
Q

Describe the arrangement, movement and the relative energy
of particles in a solid

A
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2
Q

Describe the arrangement, movement and the relative energy
of particles in a gas

A
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3
Q

Describe the arrangement, movement and the relative energy
of particles in a liquid

A
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4
Q

Describe melting

A

Solid to liquid

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5
Q

Describe freezing

A

liquid to solid

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6
Q

Describe evaporation

A

liquid to gas

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7
Q

Describe condensation

A

gas to liquid

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8
Q

Describe subliming

A

solid to gas

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9
Q

Describe depositing

A

gas to solid

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10
Q

What is a pure substance?

A
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11
Q

Simple distillation practical

A
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12
Q

Fractional distillation practical

A
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13
Q

Filtration practical

A
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14
Q

Crystallisation practical

A
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15
Q

Paper chromatography practical

A
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16
Q

Why must water used in analysis not contain any dissolved salts?

A

Water not contain any dissolved ions. that might interfere with a chemical analysis

17
Q

How can waste and groundwater be made potable?

A

Waste and ground water can be made potable by sedimentation, filtration and chlorination. This is a suitable fresh water source of potable water. Water has already been filtered by rocks and needs less filtration. It will need to be sterilised with chlorine, or ozone, or ultraviolet light to kill microbes and pathogens.

18
Q

How can seawater be made potable?

A

By using distillation