Chapter 2.2 Notes Quiz

In a water molecule, how many oxygen atoms are present?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Which term describes the attraction between molecules of different substances?

• Cohesion

• Adhesion

• Surface tension

• Capillarity

Adhesion is the attraction between molecules of:

• The same substance

• Different substances

• Solids only

• Gases only

What property of water allows it to dissolve both ionic compounds and other polar molecules?

• High boiling point

• Polarity

• Low density

• High viscosity

Which of the following substances is likely to have a pH close to 7?

• Stomach acid

• Pure water

• Lemon juice

• Bleach

Which of the following substances is likely to have a pH lower than 7?

• Human blood

• Toothpaste

• Tomato

• Bleach

Which of the following substances is likely to have a pH higher than 7?

• Stomach acid

• Lemon juice

• Human blood

• Tomato

Which of the following is NOT a characteristic of a buffer?

• Helps maintain homeostasis

• Changes the pH to neutral

• Resists changes in pH

• Can be acidic or basic

Tags

NGSS.HS-LS1-3

What is the pH range of a neutral solution?

• 0-3

• 4-6

• 7

• 8-14

What is the result of mixing a base with an acid in the presence of a buffer?

• The solution becomes neutral

• The solution becomes acidic

• The solution becomes basic

• The pH remains relatively stable