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24 January, 22:46

Write the formula for the polyatomic ion in fe (hco3) 3. express your answer as an ion.

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  1. 24 January, 23:12
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    Ions can be atomic or molecular. If an atom contains either positive or negative charge it said to be atomic cation or atomic anion.

    When a molecule carry positive or negative charge it is called as polyatomic cation or polyatomic anion. Generally charged or ionized molecules are called as polyatomic ions.

    In given question Fe (HCO₃) ₃ ionizes as follow,

    Fe (HCO₃) ₃ → Fe³⁺ + 3 HCO₃⁻

    The Ions produced are Fe³⁺ and HCO₃⁻. Fe³⁺ is said to be atomic (Ferric) ion and HCO₃⁻ (Bicarbonate) is polyatomic ion or molecular ion.
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