# Bonds and Mixing Question

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- [math]Fe_4O[/math]
- [math]Fe_2O[/math]
- [math]FeO_2[/math]
- [math]Fe_2O_4[/math]

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Type: *Multiple-Choice*

Category: *Bonds and Mixing*

Level: *Grade 10*

Tags: *
forming
ionic
bonds
*

Author: *ksalas*

Last Modified: *6 months ago*

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When Fe (IV) ions and oxygen form an ionic bond, what is the chemical formula of the compound?

- [math]Fe_4O[/math]
- [math]Fe_2O[/math]
- [math]FeO_2[/math]
- [math]Fe_2O_4[/math]

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