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6 March, 08:57

How many iron (ii) ions combine with oxygen to form iron (ii) oxide answer?

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  1. 6 March, 09:05
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    Iron (II) means that Fe has lost two electron i. e Fe⁺².

    We also know that Oxygen normally exists in - 2 oxidation state i. e. O⁻².

    And, for a neutral Iron (II) Oxide the overall charge on it must be zero.

    So,

    + 2 + (-2) = 0

    Means,

    For one atom of Fe⁺² we need one atom of O⁻².

    FeO

    Result:

    One Iron (II) ion combines with oxygen to form iron (ii) oxide.
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