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  • Identifying Ionic Compounds: Defining Characteristics & Examples
    This is a tricky one, because it's a bit of a negative definition! Here's how to break it down:

    * Ionic Compound: A compound formed by the electrostatic attraction between positively charged ions (cations) and negatively charged ions (anions).

    * Positive Ion (Other than Hydrogen): This rules out any acids which typically have a hydrogen ion (H+) as the cation.

    * Negative Ion (Other than Hydroxide): This rules out hydroxides which have the hydroxide ion (OH-) as the anion.

    Examples of Ionic Compounds that Fit This Description:

    * Sodium chloride (NaCl): Sodium (Na+) and chloride (Cl-) ions.

    * Magnesium oxide (MgO): Magnesium (Mg2+) and oxide (O2-) ions.

    * Potassium sulfate (K2SO4): Potassium (K+) and sulfate (SO42-) ions.

    * Calcium carbonate (CaCO3): Calcium (Ca2+) and carbonate (CO32-) ions.

    In essence, any ionic compound that doesn't have H+ or OH- as its main ions will fit this description.

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