The PH Scale

Antacids treat indigestion by bringing the pH of your stomach back to ______

• 5

• 7.4

• 1.5

• 9

According to the pH range which substance is more acidic than lemon juice

• Hydrochloric acid

• cabbage

• milk

Which is the stronger acid?

• pH 1

• pH 4

• pH 8

• pH 13

If the pH of a solution is 9, it is a....

• acid

• base

• both

• none

Litmus paper can be used to determine the _______ of a substance.

• relative volume

• temperature

• relative pH

• chemical formula

Which of the following substances is basic?

• Apple juice

• Ginger ale

• Baking soda

• Distilled water

The pH scale ranges from ____________.

• 0-7

• 1-100

• 1-20

• 0-14

pH less than 7.

• Acids

• Bases

• All

A solution with a pH of 7 is________

• increasing

• neutral

• decreasing

• apple juice

pH greater than 7.

• Acids

• Bases

• All