Fe(OH)2 Spell out the full name of the compound.

Ferrous hydroxide or iron (II) hydroxide.

Explanation:

Hello,

In this case, for the nomenclature of hydroxides we can use two styles:

a. IUPAC: it points out the oxidation state of the given metal by using suffixes ous or ic for metals having to oxidation states, thus, since +2 for iron is the first one, it turns out ferrous hydroxide.

b. Stock: it points out the oxidation state of the given metal by writing it inside parenthesis, thus, it turns out iron (II) hydroxide.

Regards.

a is the correct answer

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