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    How does everyone remember the colours for the tests for positive and negative ions?!?!
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    (Original post by Hollie1903)
    How does everyone remember the colours for the tests for positive and negative ions?!?!
    If you mean flame tests which identify positive ions the four colours you need to know in the spec are:

    Sodium = yellow.
    Potassium = lilac.
    Copper = blue/green
    Calcium = brick red
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    (Original post by Imsophie)
    If you mean flame tests which identify positive ions the four colours you need to know in the spec are:

    Sodium = yellow.
    Potassium = lilac.
    Copper = blue/green
    Calcium = brick red
    Hi, yeah. the flame test and the precipitate for positive and the colours for the negative tests for halides, sulfates and carbonates. I need a way to remember them
 
 
 
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