Unit 11 Review Acids and bases Review 1

Which of these pH values represent an acid?

• 4

• 8

• 10

• 12

Milk is a very weak acid. What might its pH value be?

• 6.5

• 7.8

• 4.2

• 12.2

A substance that is 3 on the pH scale would be a(n):

• acid

• base

• neutral

• solute

Which one of the following is an example of a base?

• orange juice
• dish soap
• vinegar
• lemons

A substance that changes color when mixed with an acid or base is a(n) ___.

• indicator
• neutralizer
• corrosive
• electricity

Since some acids seemingly "eat away" certain substances, acids are ____.

• bitter
• sliipery
• corrosive
• weak

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

• blue
• black
• green
• red

Bases are located where on the pH scale?

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

Bleach and oven cleaner are:

• strong acids
• weak acids
• strong bases
• weak bases

Which of the following is NOT a characteristic of an acid?

• sour taste
• corrosive
• it feels slippery
• it can burn the skin