Quiz Questions (19 questions)
Question 1
Complete the table below by identifying the type of hardness each method removes. (3 marks)
Method
Type of Hardness Removed
Boiling
?
Washing Soda
?
Distillation
?
Question 2
Complete the table below by identifying the type of hardness each method removes. (3 marks)
Method
Type of Hardness Removed
Boiling
?
Washing Soda
?
Distillation
?
Question 3
Complete the table below by identifying the type of hardness each method removes. (3 marks)
Method
Type of Hardness Removed
Boiling
?
Washing Soda
?
Distillation
?
Question 4
How can you test whether water is hard using soap? (1 mark)
Question 5
Name three methods used to soften hard water. (3 marks)
Question 6
State one disadvantage of softening water through boiling. (1 mark)
Question 7
State one disadvantage of softening water through boiling. (1 mark)
Question 8
Why is it important to soften hard water before using it in homes? (1 mark)
Question 9
Why is it important to soften hard water before using it in homes? (1 mark)
Question 10
Describe how boiling is used to soften hard water. What happens to the minerals during this process? (2 marks)
Question 11
Describe how boiling is used to soften hard water. What happens to the minerals during this process? (2 marks)
Question 12
Explain how washing soda (sodium carbonate) is used to soften hard water. (2 marks)
Question 13
Explain how washing soda (sodium carbonate) is used to soften hard water. (2 marks)
Question 14
Explain what is meant by water hardness and list the two main types of hardness found in water. (2 marks)
Question 15
Explain what is meant by water hardness and list the two main types of hardness found in water. (2 marks)
Question 16
Look at the diagram below showing a boiling and filtration setup. Explain how this method helps to soften hard water. (2 marks)
Question 17
Look at the diagram below showing a boiling and filtration setup. Explain how this method helps to soften hard water. (3 marks)
Question 18
Study the diagram of a simple distillation setup below. Explain how the process removes hardness from water. (3 marks)
Question 19
Study the diagram of a simple distillation setup below. Explain how the process removes hardness from water. (3 marks)
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