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2 January, 06:21

Check all items common to bases.

minerals

metal

gas

H+

OH-

nitrogen

+2
Answers (1)
  1. 2 January, 06:35
    0
    OH - is common to bases.

    Explanation:

    The base is a is an ionic compounds which when placed in aqueous solution dissociates in to a cation and an anion OH-.

    The presence of OH - in the solution shows that the solution is basic or alkaline.

    From Bronsted and Lowry concept base is a molecule that accepts a proton for example in NaOH, Na is a proton donor and OH is the proton acceptor.

    A base accepts hydrogen ion and the concentration of OH is always higher in base.

    There is a presence of conjugate acid and conjugate base in the Bronsted and Lowry acid and base.

    Conjugate acid is one which is formed when a base gained a proton.

    Conjugate base is one which is formed when an acid looses a proton.

    And from the Arrhenius base Theory, the base is one that dissociates in to water as OH-.
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