GCSE chemistry ocr Precipitation reactions

GCSE chemistry revision of Precipitation reactions

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  • Created by: harry
  • Created on: 02-04-13 15:29
What is a precipitation reaction
A reaction that makes a precipitate
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What is a precipitate?
An insoluble solid
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What form do the reactants usually take?
The are usually ionic solutions
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Why are the reactions fast?
Because there is a high collision frequency between the ions
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What is the test for sulfate ions?
Adding dilute HCl (hydrochloric acid) followed by barium chloride
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What colour precipitate is formed if there are sulfate ions present?
White
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What is the test for Halides?
Adding dilute nitric acid and lead nitrate
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What colour precipitate is formed if there are chloride ions present?
White
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What colour precipitate is formed if there are bromide ions present?
Cream
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What colour precipitate is formed if there are iodide ions present?
Yellow
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Other cards in this set

Card 2

Front

What is a precipitate?

Back

An insoluble solid

Card 3

Front

What form do the reactants usually take?

Back

Preview of the front of card 3

Card 4

Front

Why are the reactions fast?

Back

Preview of the front of card 4

Card 5

Front

What is the test for sulfate ions?

Back

Preview of the front of card 5
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