Acids and Bases Pre/Post

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

• 3

• 5

• 7

• 9

• 11

Which of the following pH values represents a base?

• 2.1

• 4.6

• 6.8

• 8.1

Which is the stronger acid?

• pH 1

• pH 4

• pH 8

• pH 13

Which of the following is a base?

• baking soda in water

• orange juice

• vinegar

• lemonade

The strongest bases have pH values close to

• 0

• 14

• 7

• 5

If an acid is combined with a base of equal strength, the result will most likely be

• a neutral solution.

• a stronger acid.

• impossible to tell without testing the pH.

• a stronger base

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

If I add more chicken soup to this setup, what will happen to the pH?

• It will increase and get closer to 7

• It will decrease and get closer to 0

• It will stay the same and not change

If I add more water to this setup, what will happen to the pH?

• It will increase and get closer to 7

• It will decrease and get closert to 0

• It will stay the same and not change