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The 37 pages that link to Hydroxide, each with the reason it gives.
Hydroxyl radicalCompared with: Unlike hydroxide, ·OH is neutral and has an unpaired electron.
OxideCompared with: Hydroxides contain hydrogen as well as oxygen, so they are not binary oxides.
Hydrogen ionCompared with: Hydroxide is a common aqueous counterpart to H⁺ in acid–base chemistry.
Oxide ionCompared with: Hydroxide contains hydrogen and has a 1− charge, unlike oxide.
HydronCompared with: It is a common negatively charged counterpart in aqueous acid–base chemistry.