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Gen Chem

  1. Feb 6, 2006 #1
    Hey everyone,
    How does sodium carbonate soften hard water?

    Thanks,
    Lou
     
  2. jcsd
  3. Feb 6, 2006 #2
    What ions make up the impurities in the water?
    One ion that acts as an impurity in water is the calcium ion. Does calcium form compounds with carbonate?
     
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