Acids and Bases

Acids turn litmus paper

• blue to red

• red to blue

Bases turn litmus paper

• blue to red

• red to blue

Acids have a __________ taste

• sour

• sweet

• salty

Bases have a __________ feel

• rough

• soft

• soapy

What is the pH scale?

• A scale measuring acids

• A scale measuring bases

• A scale of how sour acids and bases are

• A measure of how acidic or basis something is

Lemon juice has a pH of

• 1

• 5

• 7

• 9

Baking soda has a pH of

• 4

• 6

• 8

• 14

Sulfuric acid is a

• strong base

• strong acid

• weak base

• strong base

The pH scale goes from

• 1-14

• 0-14

• 3-10

• 6-14

An alkali is

• an acid that dissolves in water

• a neutral substance

• a base that dissolves in water

• a neutral substance which dissolves in water