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    elctrc340's Avatar
    elctrc340 Posts: 1, Reputation: 1
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    #1

    Jan 11, 2009, 01:35 PM
    Chlorate & Chloride
    This is probably a really stupid question..

    What are the reasons behind aluminum chloride being AlCl3 and Potassium Chloride being KCl? Wouldn't the subscript stay the same? Also, what is the difference between chlorate and chloride? For example, potassium chlorate and potassium chloride. Thanks again!
    Eelarch's Avatar
    Eelarch Posts: 116, Reputation: 3
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    #2

    Jan 11, 2009, 02:04 PM

    Potassium chlorate-potassium ,chlorine AND oxygen(thats what the ate is for) any compound ending in ate contains oxygen

    ALCL3 because the aluminium has a valency of 3 so it needs 3 chlorines(which have a valency of one to make a full octet)

    And potassium cloride is KCL because both the elements only have one valency
    Eelarch's Avatar
    Eelarch Posts: 116, Reputation: 3
    Junior Member
    		  
    #3

    Jan 11, 2009, 02:05 PM
    Sorry forgot to add potassium chloride is KCL because it doesn't contain any oxygen
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