Advantages and disadvantages of soft water Practice exercise 4

Course: Grade 9 Integrated science - Mixtures, Elements and Compounds - Water Hardness

Quiz Questions (39 questions)

Question 1
A study shows the following results for appliance lifespan: ApplianceWith Hard WaterWith Soft Water Kettle2 years5 years Washing Machine3 years7 years What advantage of soft water does this table show?
Question 2
A study shows the following results for appliance lifespan: Appliance With Hard Water With Soft Water Kettle 2 years 5 years Washing Machine 3 years 7 years What advantage of soft water does this table show?  (1 mark)
Question 3
A study shows the following results for appliance lifespan: Appliance With Hard Water With Soft Water Kettle 2 years 5 years Washing Machine 3 years 7 years What advantage of soft water does this table show?  (1 mark)
Question 4
A study shows the following results for appliance lifespan. What advantage of soft water does this table show?  (1 mark) Appliance With Hard Water With Soft Water Kettle 2 years 5 years Washing Machine 3 years 7 years
Question 5
A teacher shows the following table comparing soap use in two towns: TownWater TypeSoap Needed for Washing 5kg Clothes KisumuHard Water250 g EldoretSoft Water100 g Based on the table, which advantage of soft water is demonstrated?
Question 6
A teacher shows the following table comparing soap use in two towns: Town Water Type Soap Needed for Washing 5kg Clothes Kisumu Hard Water 250 g Eldoret Soft Water 100 g Based on the table, which advantage of soft water is demonstrated?  (1 mark)
Question 7
A teacher shows the following table comparing soap use in two towns: Town Water Type Soap Needed for Washing 5kg Clothes Kisumu Hard Water 250 g Eldoret Soft Water 100 g Based on the table, which advantage of soft water is demonstrated?  (1 mark)
Question 8
A teacher shows the following table comparing soap use in two towns. Based on the table, which advantage of soft water is demonstrated?  (1 mark) Town Water Type Soap Needed for Washing 5kg Clothes Kisumu Hard Water 250 g Eldoret Soft Water 100 g
Question 9
Mary lives in Kisumu and complains that the taste of soft water is flat compared to the borehole water she grew up drinking. Which disadvantage of soft water is she experiencing?
Question 10
Mary lives in Kisumu and complains that the taste of soft water is flat compared to the borehole water she grew up drinking. Which disadvantage of soft water is she experiencing?  (1 mark)
Question 11
Mary lives in Kisumu and complains that the taste of soft water is flat compared to the borehole water she grew up drinking. Which disadvantage of soft water is she experiencing?  (1 mark)
Question 12
Mary lives in Kisumu and complains that the taste of soft water is flat compared to the borehole water she grew up drinking. Which disadvantage of soft water is she experiencing?  (1 mark)
Question 13
A family in Nairobi notices that their clothes washed with soft water last longer and feel more comfortable to wear. Which advantage of soft water explains this?
Question 14
A family in Nairobi notices that their clothes washed with soft water last longer and feel more comfortable to wear. Which advantage of soft water explains this?  (1 mark)
Question 15
A family in Nairobi notices that their clothes washed with soft water last longer and feel more comfortable to wear. Which advantage of soft water explains this?  (1 mark)
Question 16
A family in Nairobi notices that their clothes washed with soft water last longer and feel more comfortable to wear. Which advantage of soft water explains this?  (1 mark)
Question 17
A water company in Eldoret is criticized for polluting rivers with waste from its water-softening process. Which disadvantage of soft water does this show?
Question 18
A water company in Eldoret is criticized for polluting rivers with waste from its water-softening process. Which disadvantage of soft water does this show?  (1 mark)
Question 19
A water company in Eldoret is criticized for polluting rivers with waste from its water-softening process. Which disadvantage of soft water does this show?  (1 mark)
Question 20
A water company in Eldoret is criticized for polluting rivers with waste from its water-softening process. Which disadvantage of soft water does this show?  (1 mark)
Question 21
A company compares maintenance costs of appliances under different water types: ApplianceMaintenance Cost with Hard Water (KES)Maintenance Cost with Soft Water (KES) Boiler15,000 per year6,000 per year Dishwasher12,000 per year5,000 per year What conclusion can the company draw about the advantage of using soft water?
Question 22
A company compares maintenance costs of appliances under different water types: Appliance Maintenance Cost with Hard Water (KES) Maintenance Cost with Soft Water (KES) Boiler 15,000 per year 6,000 per year Dishwasher 12,000 per year 5,000 per year What conclusion can the company draw about the advantage of using soft water?  (1 mark)
Question 23
A company compares maintenance costs of appliances under different water types: Appliance Maintenance Cost with Hard Water (KES) Maintenance Cost with Soft Water (KES) Boiler 15,000 per year 6,000 per year Dishwasher 12,000 per year 5,000 per year What conclusion can the company draw about the advantage of using soft water?  (1 mark)
Question 24
A company compares maintenance costs of appliances under different water types. What conclusion can the company draw about the advantage of using soft water?  (1 mark) Appliance Maintenance Cost with Hard Water (KES) Maintenance Cost with Soft Water (KES) Boiler 15,000 per year 6,000 per year Dishwasher 12,000 per year 5,000 per year
Question 25
A nutritionist in Kisumu advises a patient with high blood pressure to avoid drinking softened water. What is the main reason for this advice?
Question 26
A nutritionist in Kisumu advises a patient with high blood pressure to avoid drinking softened water. What is the main reason for this advice?  (1 mark)
Question 27
A nutritionist in Kisumu advises a patient with high blood pressure to avoid drinking softened water. What is the main reason for this advice?  (1 mark)
Question 28
A hotel in Nairobi is considering switching from hard water to soft water. The manager estimates that soap costs will reduce by 40%, but pipe replacement costs may increase due to corrosion. Which factor should the manager consider MOST when deciding whether to switch?
Question 29
A hotel in Nairobi is considering switching from hard water to soft water. The manager estimates that soap costs will reduce by 40%, but pipe replacement costs may increase due to corrosion. Which factor should the manager consider MOST when deciding whether to switch?  (1 mark)
Question 30
A hotel in Nairobi is considering switching from hard water to soft water. The manager estimates that soap costs will reduce by 40%, but pipe replacement costs may increase due to corrosion. Which factor should the manager consider MOST when deciding whether to switch?  (1 mark)
Question 31
A hotel in Nairobi is considering switching from hard water to soft water. The manager estimates that soap costs will reduce by 40%, but pipe replacement costs may increase due to corrosion. Which factor should the manager consider MOST when deciding whether to switch?  (1 mark)
Question 32
A farmer in Nakuru uses soft water for irrigation. While his sprinklers no longer clog from scale, he notices his metal pipes corroding faster. Which strategy would BEST balance the advantages and disadvantages of soft water?
Question 33
A farmer in Nakuru uses soft water for irrigation. While his sprinklers no longer clog from scale, he notices his metal pipes corroding faster. Which strategy would BEST balance the advantages and disadvantages of soft water?  (1 mark)
Question 34
A farmer in Nakuru uses soft water for irrigation. While his sprinklers no longer clog from scale, he notices his metal pipes corroding faster. Which strategy would BEST balance the advantages and disadvantages of soft water?  (1 mark)
Question 35
A farmer in Nakuru uses soft water for irrigation. While his sprinklers no longer clog from scale, he notices his metal pipes corroding faster. Which strategy would BEST balance the advantages and disadvantages of soft water?  (1 mark)
Question 36
An industrial bakery in Eldoret switches to soft water for cleaning machines. After one year, the machines remain scale-free, but engineers notice early signs of rusting. Which conclusion can the bakery draw about the trade-off of using soft water?
Question 37
An industrial bakery in Eldoret switches to soft water for cleaning machines. After one year, the machines remain scale-free, but engineers notice early signs of rusting. Which conclusion can the bakery draw about the trade-off of using soft water?  (1 mark)
Question 38
An industrial bakery in Eldoret switches to soft water for cleaning machines. After one year, the machines remain scale-free, but engineers notice early signs of rusting. Which conclusion can the bakery draw about the trade-off of using soft water?  (1 mark)
Question 39
An industrial bakery in Eldoret switches to soft water for cleaning machines. After one year, the machines remain scale-free, but engineers notice early signs of rusting. Which conclusion can the bakery draw about the trade-off of using soft water?  (1 mark)

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