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Math Help - acid base

  1. #1
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    acid base

    which of the following can act as an acid and a base

    CO3(2-) H2CO3 HCO3(-1) HCL
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  2. #2
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    Using the Bronsted-Lowry theory of acids and bases:

    An acid is proton donor
    A base is a proton acceptor

    (a proton is \text{H}^+. It's conventional to use the term proton in acids and bases)

    \text{CO}_3^{2-} happens to be the conjugate of \text{H}_2\text{CO}_3. Which is the acid is up to you to figure out
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