Ions, Acids & Bases Quiz

A sour taste is a characteristic of: (a)  

• 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

The chemical equation shows the reaction of Zinc with Sulfuric Acid. Based on the reaction shown, you should be able to determine that ACIDS release ____________ into a solution?

• H+ ions

• Hydroxide Ions (OH-)

• water

• salt

Which of the following substances are considered ACIDIC? (Select all that apply)

• orange juice

• soap

• sulfuric acid

• gastric acid

Which of the following substances are considered BASIC? (Select all that apply)

• bleach

• sea water

• baking soda

• lemon juice

What is the pH of water? (assume that it is pure)

• 7.0

• 0.0

• 1.0

• 14.0

Bases are located where on the pH scale?

• any number can be a base
• below 7
• above 7
• number 7 is a base

What color does litmus paper turn in the presence of an acid?

• blue
• black
• green
• red

A substance that is a 10 on the pH scale would be a(n) ____.

• acid
• neutral
• base
• indicator