Chapter 9 - Solutions, Acids & Bases

Acids and bases are common solutions that exist everywhere. Almost every liquid that
we encounter in our daily lives consists of acidic and basic properties, with the exception
of water. They have completely different properties and are able to neutralize to form
2O, which will be discussed later in a subsection. The table below compares the
different properties between them:
produce a piercing pain in a wound.
Feel slippery to the skin
Taste sour
Taste Bitter
Turn blue litmus paper red
Turn red litmus paper blue
Have a pH < 7
Have pH > 7
Produce Hydrogen gas when reacting
with metals
Lemons, oranges, vinegar, urine, sulfuric
acid, hyrdrochloric acid
Soap, toothpaste, bleach, cleaning
agents, limewater, ammonia water,
sodium hydroxide.
An acid is a compound that increases the concentration of H+ ions that are present
when added to water. These H+ ions form the hydronium ion (H
3O+) when they
come together with water molecules.