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Question

Acids contain _______ ions and bases contain ________ ions.


A

H+

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B

OH-

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Solution

Arrhenius acids and bases:

(1) The Arrhenius theory of acids and bases was originally proposed by the Swedish chemist Svante Arrhenius in 1884.

(2) An Arrhenius acid is any species that increases the concentration of H+ ions or protons in an aqueous solution.

(3) An Arrhenius base is defined as any species that increases the concentration of hydroxide ions OH- ions.

(4) Arrhenius acid increases the concentration of H+ ions.

(5) An Arrhenius base increases the concentration of OH- ions.

(6) In an acid-base or neutralization reaction, an Arrhenius acid and base usually react to form water and salt.

Therefore, acids contain H+ ions and bases contain OH- ions.


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