Naming Acids and Bases

Is pure water acidic, basic, or neutral?

• Acidic

• Basic

• Neutral

Which is a characteristic of a base?

• tastes sour

• found mostly in foods

• feels slippery

• turn litmus paper red

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

• blue

• black

• green

• red

Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.

• Acids; pH less than 7

• Acids; pH greater than 7

• Bases; pH greater than 7

• Bases; pH less than 7

Which of these substances is acidic?

• Tap Water

• Lemon

• Ammonia

• Baking Soda

What PH number would be an example of a strong acid?

• 14

• 13

• 7

• 1

Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.
The substance in the beaker

• is a base.

• has a neutral pH.
  

• is an acid.

• does not have a pH.

Litmus paper can be used to determine the _______ of a substance.

• relative volume

• temperature

• relative pH

• chemical formula

Which of the following substances is basic?

• soda

• lemon juice

• soap

• vinegar

pH stands for:

• Potency of hydrogen

• Plurality of hydrogen

• Potential of hydrogen

• Pleurisy of hydrogen