Identify the formula of the compound iron (III) phosphide.

The charges of iron and phosphide has to be known to get the formula of the compound iron (III) phosphide. Fe3+ is the formula of iron with charge here and P3− is the formula and charge of phosphide. The formula of the compound is FeP. I hope that this is the answer that has actually helped you.

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RomeliaThurston RomeliaThurston · Answer 2 · 2019-06-18T06:25:42+02:00

Answer: The chemical formula of the compound is [tex]FeP[/tex]

Explanation:

Iron (III) phosphide is a compound which is formed by the combination of iron ion [tex](Fe^{3+})[/tex] and phosphide ion [tex](P^{3-})[/tex]

The oxidation state of iron in the compound is +3 and the oxidation state of phosphorus in the compound is -3.

Thus, by criss-cross method, the oxidation states of the opposite ions becomes the subscipt of the other atom that represents the number of individual atoms in a compound. So, the chemical formula of iron (III) phosphide becomes [tex]FeP[/tex]

Hence, the chemical formula of the compound is [tex]FeP[/tex]