Acids and Bases 4

If the substance is neutral, what would the pH be?

• 3

• 5

• 7

• 9

• 11

Ocean water is only slightly basic. What might its pH value be?

• 5

• 8

• 12

• 2

The strongest bases have pH values close to

• 0

• 14

• 7

• 5

Which of the following is a property of a base?

• bitter taste

• reacts with metals

• salty

• sour taste

When acids react with metals, they produce hydrogen gas and salt.

• True

• False

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

• 6.5

• 7.8

• 4.2

• 12.2

A substance is found to have the following characteristics:

Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water

In what category would the substance be classified?

• acid

• base

• enzyme

• fatty acid

Acids react with

• water to produce bases and salts
• salts to produce bases and water
• neither bases, salts nor water
• bases to produce salts and water

HF is...

• an strong acid

• a base

• a salt

• an weak acid

HNO₂

• a base

• a salt

• an acid

• an ionic compound