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Chemistry GCSE > Separating mixtures > Flashcards

Separating mixtures Flashcards

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1
Q

What is the state change from gas to solid?

A

Deposition

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2
Q

What is the state change from solid to gas?

A

Sublimation

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3
Q

When does a substance start to melt?

A

When energy is transferred to the particles

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4
Q

When does a substance begin to freeze?

A

When energy is transferred to the surroundings

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5
Q

What are the stages of water treatment?

A
  • Sedimentation - large insoluble particles sink to the bottom of a tank
  • Filtration - small insoluble particles are removed by filtering through beds of sand
  • Chlorination - chlorine gas is bubbled from water to kill microbes
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6
Q

What is a molecule?

A

Two or more atoms chemically bonded together

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Chemistry GCSE (16 decks)

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