Identify the conjugate acid-base pair in the following reaction.
$H_2O + HCl \rightarrow H_3O^{+} + Cl^{-}$

  • A
    $Cl^{-}$ and $H_2O$
  • B
    $H_3O^{+}$ and $Cl^{-}$
  • C
    $H_2O$ and $HCl$
  • D
    $H_3O^{+}$ and $H_2O$

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