Acid and Bases

A sour taste is a characteristic of:

• acids

• bases

• neutral

• pH scale

Which is a characteristic of a base?

• tastes sour

• found mostly in foods

• feels slippery

• turn litmus paper red

pH is the measure of the concentration of ______.

• Acids

• H+ ion

• OH- ion

• Bases

Stronger acids have a pH closer to...

• 7

• 0

• 14

• 9

Weaker bases have a pH closer to...

• 8

• 0

• 14

• 4

A pH level of 7 indicates

• acid

• base

• neutral

• none of the following

The pH scale is a range from:

• 1-7

• 0-14

• 1-5

• 1-14

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

• Bleach

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

• Acid
• Base
• Neutral
• Acid and Base