Strength of Acids and Alkalis

Which is the stronger acid?

• pH 1

• pH 4

• pH 8

• pH 13

The strongest bases have pH values close to

• 0

• 14

• 7

• 5

Tags

NGSS.MS-PS1-2

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

Which of the following pH values represents a base?

• 2.1

• 4.6

• 6.8

• 8.1

What is the pH range of acids?

• 0-7

• 7-14

• 7

• 14-21

Which of the following is a base?

• baking soda in water

• orange juice

• vinegar

• lemonade

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

Tags

NGSS.MS-PS1-2

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

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

• blue

• black

• green

• red