Acids & Bases

Indicators change color in the presence of a(n) _______________.

• acid or base

• buffer

• water molecule

• ester

Why does vinegar help preserve things like pickles? 

• It keeps moisture in. 

• It preserves flavors and crispness

• It kills bacteria that break down foods. 

• It keeps the cells alive

An extremely strong base would have a pH of...

• 1

• 7

• 9

• 14

A neutral substance would have pH of...

• 8

• 7

• 6

• 14

If a solution is neither acidic or basic it has a pH of _____________.

• 1

• 13

• 6

• 7

A base has a _________________ .

• sour taste

• positive ion

• slippery feel

• pH of 5

Tastes Sour

• Acids

• Bases

• Salts

• All

Which of the following is an acid?

• shampoo

• baking soda

• orange juice

• water

Tastes bitter.

• Acids

• Bases

• Salts

• All

Most foods are 

• Acid

• Basic

• Neutral

• salts