Describe the differences between strong and weak acids.

Important Questions on Consequences

MEDIUM

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 3 - Consequences>Summative assessment>Q 4

Deduce the chemical reaction for the formation of carbonic acid. Classify this as either a strong or weak acid.

MEDIUM

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 3 - Consequences>Summative assessment>Q 5

Acid rain has a

pH

of

4.2

to

4.4

. This is approximately 1

pH

unit lower than normal rain water. Given your knowledge of the

pH

scale, explain how the concentration of hydrogen ions differs between these two solutions.

HARD

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 3 - Consequences>Summative assessment>Q 9

Soil acidity plays an important role in optimising the growth of plants. The soil acidity can change as a result of acid rain. Reduced $pH$ levels can deplete the soil of essential nutrients and minerals.

Design an experiment to demonstrate how increased soil acidity resulting from acid rain can be diminished or reversed. Your design should include:
● how you will neutralize the effect of the acid rain?

● how you will demonstrate that the

pH

has been changed?

HARD

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 3 - Consequences>Summative assessment>Q ●

Consequences of human development have posed significant threats to terrestrial and aquatic ecosystems across the globe. Write a case study related to the consequences of acid rain on either a forest or a body of water of your choice. The case study should respond to the following question:

How can some consequences of acid-rain have far-reaching effects?

HARD

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 3 - Consequences>Summative assessment>Q ●

Consequences of human development have posed significant threats to terrestrial and aquatic ecosystems across the globe. Write a case study related to the consequences of acid rain on either a forest or a body of water of your choice. The case study should respond to the following question:

How might changing environments have positive consequences?