Acid-Base Reactions and Buffer Solutions Quiz

What forms acid rain?

• Nitrogen reacting with hydrogen

• Carbon dioxide reacting with oxygen

• Sulfur dioxide reacting with water

• Oxygen reacting with hydrogen

Tags

NGSS.MS-PS1-1

What was a major effect of acid rain in the 80s and 90s?

• Increased plant growth

• Rivers and streams devoid of algae and fish

• Improved air quality

• Decrease in global temperatures

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What protects the Clark Fork River from acid rain?

• The type of fish in the river

• The temperature of the water

• Limestone

• Its depth

Tags

NGSS.MS-LS2-4

What is a buffer solution?

• A solution that resists changes in pH

• A solution that changes pH rapidly

• A solution that neutralizes bases only

• A solution that only contains strong acids

What makes a good buffer?

• A mixture of a strong acid and its conjugate base

• A mixture of a weak acid and its conjugate base

• A solution of pure water

• A solution of sodium chloride

What happens when a strong acid is added to a buffered solution?

• The pH remains relatively stable

• The solution becomes a strong base

• The pH increases dramatically

• The pH decreases dramatically

What is the role of limestone in protecting rivers from acidification?

• It acts as a physical barrier

• It absorbs carbon dioxide

• It heats up the water

• It dissolves to neutralize the acid

What is the significance of the pH indicator in the experiment?

• It changes color to indicate pH levels

• It acts as a buffer

• It heats the solution

• It neutralizes acids

What is the purpose of a titration in the context of this experiment?

• To increase the pH of the solution

• To create a buffer solution

• To measure the buffering capacity

• To heat the solution

Why is the Clark Fork River resistant to acidification?

• Because it is a man-made river

• Due to the presence of limestone

• Because of the fish species in the river

• Due to the high temperature of the water

Tags

NGSS.MS-PS1-2