____ are atoms or molecules with an electrical
charge, either positive or negative. Whether a liquid is
an acid or a base depends on these. We classify acids
and base on the ____. A liquid on this scale with
a pH of 3 is a/an ____, while a liquid with a pH of
9 is a/an ____ When an acid and a base interact
with one another the liquid can become ___
and it will have a pH of 7.

The answer to fill in the blank are: Acidic, Basic, pH Scale, Neutral, Ion