GCSE AQA Unit 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Flame test for lithium ion | Crimson-red
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| Flame test for sodium ion | Yellow-orange
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| Flame test for potassium ion | Lilac
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| Flame test for calcium ion | Brick-red
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| Flame test for barium ion | Green
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| Sodium hydroxide precipitate test for calcium | White
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| Sodium hydroxide precipitate test for copper | Blue
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| Sodium hydroxide precipitate test for iron(II) | Sludgy green
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| Sodium hydroxide precipitate test for iron(III) | Reddish brown
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| Sodium hydroxide precipitate test for aluminium | White then redissolves to form a colourless solution
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| Sodium hydroxide precipitate test for magnesium | White
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| Ammonium compound and sodiuum hydroxide | Red litmus paper turns blue in the presence of ammonia
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| Testing for carbonates | Add an acid and carbon dioxide is present which can be tested by bubbling the gas through limewater which should turn cloudy
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| Copper carbonate changes colour from what to what when it decomposes? | From green to black
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| Zinc carbonate changes colour from what to what when it decomposes? | From white to yellow, but when it cools down it turns back to white
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| Test for sulfates | Dilute hydrochloric acid folowed by barium chloride
A white precipitate of barium sulfate should form if sulfate present
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| Test for halides | Dilute nitric acid followed by silver nitrate solution
Chloride gives white precipitate
Bromide gives cream precipitate
Iodide gives yellow precipitate
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| Test for nitrates | Aluminium powder and a few drops of sodium hydroxide
If nitrate present, it will be reduced to ammonia
Ammonia turns red litmus paper blue
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| Acid + Metal carbonate gives what? | Salt + Water + Carbon dioxide
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| Acid + Alkali gives what? | Salt + Water
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| Acid + Metal oxide gives what? | Salt + Water
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| Acid + Metal hydroxide gives what? | Salt + Water
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Marge-Homer
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