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9 Cards in this Set
- Front
- Back
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Precipitation reactions normally include what?
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Two solutions reacting together to make an insoluble substance.
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What is called the precipitate and the solutions turns what?
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The insoluble substance is called the precipitate and the solution turns cloudy
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Most precipitation reactions involve ions. To react with each other, what needs to happen?
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The ions need to collide so they can react with each other
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Why do ionic substances need to be in a solution?
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They need to be in a solution because ions in solid ionic substances cannot move
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How do you test for sulphate ions?
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To test for sulphate ions add dilute HCl, followed by barium chloride
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To test for chloride, bromide or iodide ions, what do you need to add?
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You need to add dilute nitric acid, followed by lead nitrate
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What colour does chloride give?
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It gives a white precipitate of lead chloride
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What colour does bromide give?
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It gives a cream precipitate of lead bromide
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What colour does iodine give?
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It gives a yellow precipitate of lead iodine
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