Flame tests for positive and negative ions!!

Cards to test knowledge for AQA C3 Chemistry, negative and positive ions flame tests.

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  • Created by: Miranda
  • Created on: 27-04-11 20:01

Lithium

Flame test for lithium ?

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Answer

Bright Red

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Sodium

Flame test for Sodium ?

3 of 18

Answer

'Golden' Yellow 

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Potassium

 Flame test for Potassium 

5 of 18

Answer

Lilac 

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Calcium

Flame test for Calcium ?

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Answer

'Brick' Red 

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Barium

Flame test for Barium?

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Answer

Green

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Magnesium

Flame test  for Magnesium?

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Answer

NO colour 

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Testing for Carbonate Ions

What is the test for Carbonate ions?

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Answer

1.Add dilute Hcl acid to the substance and see if it fizzes

2. If fizzing and gas turns lime water milky = carbonate ions!!

OR-

CO(2) produced wehn they decompose on heating but harder to detect

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Test for Halide ions

Test for halide ions? 

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Answer

1. Add dilute nitric acid and then silver nitrate solution

2. Chloride solutions = white precipitate AND Bromide ions = cream precipitate 

Iodide = yellow precipitate 

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Nitrate ions

Flame test for Nitrate ions?

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Answer

1. Add a little Aluminium powder then Sodium Hydroxide solution

2. Warm and test gas given off with red litmus paper

3. If turns blue ammonia was produced and nitrate ions present 

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Comments

Al

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Simple, but strangely effective.

Good Job!

Al

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Simple/small spelling mistake on page 14 of 18:

'wehn'

Instead of:

'When'

Miranda

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Cheers!! :)

Al

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Here are extra details and more elements (which you need not know at GCSE).

Hope it contributes to the great help your offering, by uploading these resources to this amazing site (Gr):

http://webmineral.com/help/FlameTest.shtml

Miranda

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'Your' instead of 'You are' :D 

I will have a look and also when I figure out how to upload!! 

Al

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Miranda Bopoto wrote:

'Your' instead of 'You are' :D 

I will have a look and also when I figure out how to upload!!

Oh great, can't wait to hear from yours truly.

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