Answer
Amphoteric: may act as an acid and a base
$K_w$ reaction: the autoionization of water
$K_w$ equilibrium constant: the ion-product constant for water
$pH$: the negative logarithm of $[H^+]$, the concentration of $H^+$ ions
$pOH$: the negative logarithm of $[OH^-]$, the concentration of $OH^{-}$ ions
$pK_w$: the negative logarithm of the ion-product constant of water (equal to 14 at 25 degrees Celsius)
Work Step by Step
See textbook definitions.
