Table of contents

3. Chemical Reactions

Naming Ionic Compounds

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Multiple Choice

What is the correct name for the compound with the formula KOH?

Potassium oxide

Potassium hydride

Potassium hydroxide

Potassium peroxide

Verified step by step guidance

Identify the elements present in the compound KOH: potassium (K), oxygen (O), and hydrogen (H).

Recognize that K is a metal (alkali metal) and typically forms a +1 cation (K\^+).

Understand that OH is a polyatomic ion called hydroxide, which carries a -1 charge (OH\^-).

Combine the cation and anion names: potassium (for K\^+) and hydroxide (for OH\^-).

Conclude that the correct name for KOH is potassium hydroxide, since it consists of potassium ions and hydroxide ions.

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