Acid/Base Basics

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

HF is...

• an acid

• a base

• a salt

• an ionic compound

HNO₂

• a base

• a salt

• an acid

• an ionic compound

Releases hydrogen in an aqueous solution.

• base
• strong base
• acid
• weak base

KOH is ...

• an acid

• a base

• a salt

• an ionic compound

According to the pH range which substance is more acidic than lemon juice

• Hydrochloric acid
• cabbage
• milk

Bleach is a strong base, what is the pH level of bleach?

• 13
• 14
• 1
• 2

Taste bitter

• acids

• bases

• neutral

• pH paper

Taste sour

• acids

• bases

• neutral

• pH scale

Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?

• strongly acidic
• slightly acidic
• strongly basic
• slightly basic

Tags

NGSS.HS-LS1-3