Which of the following compounds is a common oxidation state of iron?

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Q: Which of the following compounds is a common oxidation state of iron?

Solution: Iron commonly exhibits oxidation states of +2 and +3, with +2 being the most stable in many compounds.

Steps: 5

Step 1: Understand what oxidation states are. Oxidation states indicate the charge of an atom in a compound.
Step 2: Identify the element in question, which is iron (Fe).
Step 3: Learn that iron can lose electrons to form positive charges.
Step 4: Recognize that iron commonly forms two positive charges: +2 and +3.
Step 5: Note that the +2 oxidation state is often more stable in many compounds than the +3 state.