Acids & Bases

The pH scale is a range from:

• 1-7

• 0-14

• 1-5

• 1-20

A(n) ______ is a substance with a pH less than 7

• Acid

• Alkaline

• Base

• Buffer

What is the only substance with a neutral pH of 7?

• Milk

• Orange Juice

• Water

• Blood

A solution with a pH of 8.6 would be...

• Acid

• Base

• Neutral

• Acid and Base

A solution with a pH of 3.6 would be...

• Acid

• Base

• Neutral

• Acid and Base

The pH scale is based off of the concentration of _________ ions.

• Oxygen

• Hydronium (H+)

• Nitrogen

• None of the others

When using pH paper, the pH of a solution can be determined by looking at the _______ of the paper.

• texture

• color

• length

• mass

 Which of the following is an acid?

• shampoo

• baking soda

• orange juice

• water

What would be considered the weakest base? 

• 8

• 14

• 7.8

• 11.6

Ammonia has a pH of 12.  Ammonia is __________.

• an acid

• a base

• an element

• a metal