The PH Scale

Which solution releases H+ in solution?

• Base

• Acid

• Buffer

• Water

Lemon juice is an example of  __________

• base

• acid

• neutral substance

The pH scale is a range from:

• 1-7

• 0-14

• 1-5

• 1-20

As one moves down the pH scale from 14 to 1, what happens to the concentration of H+ in the solution?

• concentration of H+ decreases

• concentration of H+ increases

• concentration of H+ stays the same

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

• Pure Water

• Blood

• All Water

In a test of pH levels, a baking soda has a pH of 9 and bleach has a pH of 12. What is true about there relationship?

• Both of the solution are bases

• Both of the solution are acids

• The Baking soda is an acid and the Bleach is a base

• The baking soda is a base and the Bleach is an acid.

A pH of 3 is how many times more acidic than a pH of 5?

• 2

• 20

• 10

• 100

On the pH scale higher numbers indicate

• acids

• bases

A solution has a pH of 7.0.  What would happen to the pH if H ions were added?

• pH would go up

• pH would go down

• pH would stay the same

• None of these