1. Acids and Bases
pH factor

2. Acids Acids Sour Taste Less than 7 on pH scale
Forms a hydrogen ion (H+)
When mixed with a base, they neutralize each other and form a salt and water
Conduct electricity
Include: Orange Juice, Lemon Juice, Pepsi/Coke, Vinegar

3. Bases Bases Bitter Taste Greater than 7 on pH scale
Forms a hydroxide ion (OH-)
When mixed with an acid, they neutralize each other and form a salt and water.
Conduct Electricity
Includes: Household Cleaners, Antacid, Ammonia

4. Things to know about Acids and Bases
Dissociation – When either mix with water, they separate to form ions.
Neutralization Reaction – When mixed together, they neutralize to form a salt and water:
NaOH(aq) + HCl(aq) -> NaCl(aq) + H2O(l)
A substance is classified as an acid or base depending on the level of acidity in it. This is measured on the pH scale: 7 is neutral. Tests can be done using an acid-base indicator such as litmus paper.

6. NEUTRAL SUBSTANCES Do not release H+ ions or OH - ions into solution.
Have a pH of 7
Taste neither bitter or sour
Feel soothing to touch
Do not always conduct electricity
Includes: Deionized Water, Homogenized Milk, Sugar Water

7. pH scale 7
Neutral