Acids and Bases

An acid is a substance that

• produces hydrogen ions (H+) in a water solution.

• produces hydroxide ions (OH-) in a water solution.

• is greater than pH 7.

• accepts hydrogen ions (H+) in a water solution.

A base (alkaline substance) is a substance that

• produces hydrogen ions (H+) when in solution with water.

• produces hydroxyl ions (OH-) when in solution with water.

• receives hydroxyl ions (OH-) when in solution with water.

• is less than 7 on the pH scale.

Your stomach is

• neutral.

• neither acidic nor neutral.

• acidic.

Which of the following is acidic?

• baking soda

• tomatoes

• baking powder

• sodium hydroxide (NaOH)

Which of the following is acidic?

• Sodium hydroxide (NaOH)

• Baking soda

• Baking powder

• The content of car batteries.

Which of the following is basic?

• Baking soda

• Stomach acid

• Most fruits

Which of the following is acidic?

• Carbonated drinks

• Baking soda

• Baking powder

• Ammonia (NH3)

An (blank) such as litmus paper, is an organic compound that changes color in acid and base

• indicator

• applicator

• terminator

• alligator

Which of the following is a base?

• HCI

• H2SO4

• NaOH (sodium hydroxide)

• HNO3

T or F. Both acids and bases can be corrosive.

• True

• False

• Neither T nor F, it's a trick question