Properties of Acids & Bases

What are some properties of an acid, like lemon juice?

What are some properties of a base, like bitter melon extract?

What is the pH of a neutral substance?

• 0 - 3

• 4 - 6

• 7

• 8 - 10

• 11 - 14

What is the pH range of an acid?

• Between 0 - 6.9

• at 7

• between 7.1 - 14

• above 14

Which example is an indicator that the substance is a base?

• The litmus paper stays the same.

• The litmus paper turns red.

• The litmus paper turns blue.

• The litmus paper turns green.

Which properties are common for an acid?

• feels slippery and stings if it touches a cut

• makes hydrogen gas when it reacts with a metal

• tastes bitter and sour

• makes litmus paper turn blue

Match each vocabulary word with its definition.

• pH Scale

• A corrosive, sour chemical substance with a pH less than 7.

• Indicator

• A special dyed paper that can determine if a substance is an acid or base.

• Litmus Paper

• A range of measurements on the concentration of hydrogen ions in a chemical substance.

• Acid

• A substance that can help determine if a substance is acidid, basic, or neutral.

• Base

• A slippery, bitter chemical substance with a pH greater than 7.

What is the pH of dish soap?

What is the pH of distilled water?

What is the pH of lemon juice?