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hydroxide ion

hydroxide ion

5.1
A small negatively charged particle made of one oxygen and one hydrogen atom that makes solutions alkaline
  • noun
  • /haɪˈdrɒksaɪd aɪən/
  • Specialized
translation icon : ión hidróxido
  • The hydroxide ion can react with acids to form water and salts.

Examples

  • Lot of the molecules of water are actually split into a hydroxide ion and a hydrogen ion.

  • But as you raise the pH, IE add more hydroxide ion, the diffusion coefficient starts to go up.

  • Basin water problem, it's a concentration of hydroxide ion POHPH.

  • You don't have much ionization to form the hydroxide ion concentration.

  • In an alkaline solution, the presence of a hydroxide ion increases the pH level.

  • Chemists often measure the concentration of hydroxide ion in various chemical reactions.

Synonyms

hydroxide
vshydroxide ion
  • Specialized
8 5.8

A chemical made of oxygen and hydrogen that reacts with acids to make water and salt

refers specifically to the single negatively charged particle common in alkaline solutions
hydroxyl ion
vshydroxide ion
  • Specialized
6.7

A particle with a negative charge made of one oxygen and one hydrogen atom

is the same particle but named differently in some texts

How Acidic

hydriodic acid
  • Specialized
7.4
hydrogen ion concentration
  • Specialized
5.7
neutrality
  • Specialized
5.3
hydroxide ion
  • Specialized
5.1

Surface Forms

hydroxide ion singular

Morphology

hydroxide + ion

The term is directly compositional: 'hydroxide' names the hydroxyl-based species and 'ion' denotes a charged particle, so together they denote a charged hydroxide species (OH−). Although technical, the meaning follows straightforwardly from the constituents and is cross-linguistically and morphologically regular, so a learner who knows both words can derive the MWE's meaning.

Etymology

Hydroxide ion: The name hydroxide ion was formed from parts that tell what it is: hydro for hydrogen, oxide for oxygen, and the ending -ide that marks a 'negative' part. So the name literally says 'a negative part of hydrogen and oxygen', which explains why it means one oxygen and one hydrogen carrying a negative charge.