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What is the general trend in the acidity of Period 3 oxides moving across the Periodic table from left to right? (Be sure to refer to the term acidity.)

  • Chemistry - ,

    Generally the trend is to increase the acidity. For example look at the results if you add H2O to the oxide.
    Na2O gives NaOH a strong base.
    MgO gives Mg(OH)2, a weaker base (stronger acid)
    P2O5 gives H3PO4, a weak acid
    SO3 gives H2SO4, a strong acid.
    Cl2O7 gives HClO4, a very strong acid.

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