Question

multiple choice 15 points
what is the name for feo?
iron oxide
iron (i) oxide
iron (ii) oxyide
iron (ii) oxide

Explanation:

• In the compound \(FeO\), oxygen (\(O\)) has an oxidation state of \(- 2\).
• Let the oxidation state of \(Fe\) be \(x\). Using the rule that the sum of oxidation states in a neutral compound is \(0\), we have \(x+( - 2)=0\), so \(x = + 2\).
• For transition - metal compounds, we use Roman numerals to indicate the oxidation state of the metal. So, \(Fe\) has an oxidation state of \(+2\), and the name is iron (II) oxide. The option “Iron (II) oxyide” has a misspelling of “oxyide” (correct is “oxide”).

Answer:

Iron (II) oxide