Question #b2dc8

1 Answer
Ernest Z.
Mar 15, 2016

#"OH"# is not a polyatomic ion because it is not an ion.

Explanation:

However, #bb("OH"^"-")# (note the negative charge) is a polyatomic ion.

A polyatomic ion is an ion composed of two or more covalently bonded atoms.

The prefix poly- means "many" in Greek, but even ions of two atoms are commonly called polyatomic ions.

In your equation, #"KOH"# is an ionic compound consisting of #"K"^+# ions and #"OH"^"-"# ions, and the #"OH"^"-"# ions are polyatomic.

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