pH scale

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

A solution has a pH of 7.0.  What would happen to the pH if H ions were added?

• pH would go up
• pH would go down
• pH would stay the same
• None of these

On the pH scale higher numbers indicate

• acids
• bases

The pH scale is a range from:

• 1-7
• 0-14
• 1-5
• 1-20

Feels slippery.

• Acids
• Bases
• All

What does pH measure?

• the amount of hydrogen (H⁺) ions

• the amount of hydroxide (OH^-) ions

• amount of water

• all of the above

A pH of 3 is how many times more acidic than a pH of 5?

• 2

• 20

• 10

• 100

A chemical has a pH = 6. It would be best described as

• Strong acid

• Strong base

• Weak acid

• Weak base

Water has a neutral because

• it has more H+ ions than OH-

• it has more OH- ions than H+

• it does not produce any ions

• it has an equal amount of H+ and OH- in solution

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer