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词汇 hydronium ion
释义

Definition of hydronium ion in English:

hydronium ion

nounhʌɪˈdrəʊnɪəmhīˌdrōnēəm ˈīˌän
Chemistry
  • another term for hydroxonium ion
    Example sentencesExamples
    • Metals high on the activity series react more vigorously with oxidants including the halogens and the hydronium ion than those lower on the scale.
    • Instead of floating free, hydrogen ions combine with water molecules to produce a positively charged hydronium ion.
    • Some examples of positively charged electrophiles are the hydronium ion, nitronium ions, metal ions, and carbocations.
    • A hydronium ion, however, disrupts this structure because it can accommodate a maximum of three hydrogen bonds.
    • In response to that stress, the conjugate base reacts with the hydronium ion, producing more carbon dioxide which is removed from the system by increasing respiration.

Origin

Early 20th century: hydronium, from German (a contraction).

Definition of hydronium ion in US English:

hydronium ion

nounhīˌdrōnēəm ˈīˌän
Chemistry
  • The ion H₃O⁺, consisting of a protonated water molecule and present in all aqueous acids.

    Example sentencesExamples
    • In response to that stress, the conjugate base reacts with the hydronium ion, producing more carbon dioxide which is removed from the system by increasing respiration.
    • A hydronium ion, however, disrupts this structure because it can accommodate a maximum of three hydrogen bonds.
    • Some examples of positively charged electrophiles are the hydronium ion, nitronium ions, metal ions, and carbocations.
    • Instead of floating free, hydrogen ions combine with water molecules to produce a positively charged hydronium ion.
    • Metals high on the activity series react more vigorously with oxidants including the halogens and the hydronium ion than those lower on the scale.

Origin

Early 20th century: hydronium, from German (a contraction).

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