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    Like calcium sulphate or something ..
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    (Original post by letsbehonest)
    Like calcium sulphate or something ..
    well, a salt is an ionic compound

    usually a metal cation and a non-metal anion

    it doesn't necessarily have to be aqueous - take NaCl, it's solid at standard conditions

    if it's aqueous, it means it's dissolved in water
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    If something is aqueous then that means that it is dissolved in water. Salts are ionic substances - so they have positive and negative charges (calcium has a 2+ charge whereas sulphate has a 2- charge). This means that when you add a salt into water it will dissolve/ form an aqueous solution because the positive ions are attracted to the electronegative oxygen atom whereas the negative ions are attracted to the electron deficient hydrogen atoms.
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    Salts are soluble so yes, can be aqueous, because they are giant ionic lattices (water of crystallisation and all that fun). A salt is where a base has had its hydrogen ion replaced by a metal ion or ammonium. The water molecules are polar, the positive hydrogen dipole is attracted to the negative ions, and the negative oxygen is attracted to the positive ions and as such the salt disassociates (see video, says it all really)
    Calcium sulphate is soluble, but not very

    http://m.youtube.com/#/watch?v=EBfGc...GcTAJF4o&gl=GB


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