Seperating mixtures Flashcards

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1
Q

What is a pure substance?

A

A substance that is made up of ☝️ type of particle.

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          πŸ”΄πŸ”΄πŸ”΄πŸ”΄πŸ”΄πŸ”΄
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          πŸ”΄πŸ”΄πŸ”΄πŸ”΄πŸ”΄πŸ”΄
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2
Q

Define a β€˜Mixture’.

A

✌🏾 or more substances with different physical properties mixed together.

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3
Q

What are physical properties?

A

Special characteristics used to describe the particles of a substance.

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4
Q

Examples of pure substances.

A

Gold, water, salt, carbon dioxide etc.

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5
Q

How does a mixture form?

A

The particles of one ☝️ substance move in between the particles of another substance.

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6
Q

How can you separate a mixture?

A

We can separate a mixture according to its properties using physical methods

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7
Q

What is sieving?

A

Method where sieve is used to separate a mixture of different sized particles (solids).

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8
Q

What is filtration?

A

Method used to separate a solid from a liquid.

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9
Q

Definr the term β€˜Insoluble’.

A

A solid thet doesn’t dissolve in a liquid.

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10
Q

How does hand sorting work?

A

We can sort a mixture that is made up of solid particles by size, colours, textures or shapes by hand.

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11
Q

What does dissolve mean?

A

When the solif particles move between the liquid particles to gorm a mixture.

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12
Q

What makes a solution?

A

A mixture that consistd of a solid dissoved in liquid.

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13
Q

What’s a solute?

A

A substance that dissoves when making a solution.

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14
Q

What’s a solvent?

A

The liquid in a solution.

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15
Q

What is evaporation?

A

The of changing from a liquid to a gas because particles on the surface of the liquid escape into the atmosphere.

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16
Q

How do magnets separate mixtures?

A

A magnet can attract a mixture of ☝️ magnetic and non- magnetic substances.

17
Q

What is distillation?

A

The process of separating a solution by heat so the solvent evaporates, and cooling the vapour so it condenses.

18
Q

Define condensation.

A

Change of state from a ⛽️ to a liquid, caused by cooling.

19
Q

What are pigments?

A

Substances that give colour to living tissue, materials, paint and ink.

20
Q

What is chromatography?

A

Method used to seperate a mixture in which different parts of the mixture move through a medium (paper) of different speeds. It can also be usef to separate pigments.