Advantages and disadvantages of hard water Practice exercise 4

A family notices white deposits at the bottom of their kettle after boiling water multiple times. What should they suspect?

A family notices white deposits at the bottom of their kettle after boiling water multiple times. What should they suspect? (1 mark)

A family notices white deposits at the bottom of their kettle after boiling water multiple times. What should they suspect? (1 mark)

A family notices white deposits at the bottom of their kettle after boiling water multiple times. What should they suspect? (1 mark)

A househelp notices that the soap is not forming enough lather and is leaving white residue. What is the most likely cause?

A househelp notices that the soap is not forming enough lather and is leaving white residue, as shown below. What is the most likely cause?  (1 mark)

A househelp notices that the soap is not forming enough lather and is leaving white residue, as shown below. What is the most likely cause?  (1 mark)

A househelp notices that the soap is not forming enough lather and is leaving white residue, as shown below. What is the most likely cause?  (1 mark)

A parent bathing their baby with hard water notices the child’s skin becoming dry and slightly irritated. What is the likely reason?

A parent bathing their baby with hard water notices the child’s skin becoming dry and slightly irritated. What is the likely reason? (1 mark)

A parent bathing their baby with hard water notices the child’s skin becoming dry and slightly irritated. What is the likely reason? (1 mark)

A plumber is called to fix a blocked shower head. On inspection, he finds chalky deposits inside the pipe. What is the best explanation?

A plumber is called to fix a blocked shower head. On inspection, he finds chalky deposits inside the pipe, as shown below. What is the best explanation?  (1 mark)

A plumber is called to fix a blocked shower head. On inspection, he finds chalky deposits inside the pipe, as shown below. What is the best explanation?  (1 mark)

A plumber is called to fix a blocked shower head. On inspection, he finds chalky deposits inside the pipe, as shown below. What is the best explanation?  (1 mark)

Jane recently noticed that her clothes are coming out of the washing machine stiff and dull even after using detergent. What might be the problem?

Jane recently noticed that her clothes are coming out of the washing machine stiff and dull even after using detergent. What might be the problem?  ( 1mark)

Jane recently noticed that her clothes are coming out of the washing machine stiff and dull even after using detergent. What might be the problem?  ( 1mark)

Jane recently noticed that her clothes are coming out of the washing machine stiff and dull even after using detergent. What might be the problem?  (1 mark)

A Nairobi laundromat receives complaints that clothes feel scratchy and look dull. Tests confirm that the washing water is hard. What is the most immediate consequence for the business?

A Nairobi laundromat receives complaints that clothes feel scratchy and look dull. Tests confirm that the washing water is hard. What is the most immediate consequence for the business? (1 mark)

A Nairobi laundromat receives complaints that clothes feel scratchy and look dull. Tests confirm that the washing water is hard. What is the most immediate consequence for the business? (1 mark)

An apartment complex uses hard water and faces frequent repairs of water heaters and plumbing. What would be the best long-term, cost-effective solution?

An apartment complex uses hard water and faces frequent repairs of water heaters and plumbing. What would be the best long-term, cost-effective solution?  (1 mark)

An apartment complex uses hard water and faces frequent repairs of water heaters and plumbing. What would be the best long-term, cost-effective solution?  (1 mark)

An apartment complex uses hard water and faces frequent repairs of water heaters and plumbing. What would be the best long-term, cost-effective solution?  (1 mark)

A rural dispensary provides untreated borehole water to the local community. While some residents benefit from stronger bones, others report skin dryness and irritation. What practical action should the health officers take?

A rural dispensary provides untreated borehole water to the local community. While some residents benefit from stronger bones, others report skin dryness and irritation. What practical action should the health officers take?  (1 mark)

A rural dispensary provides untreated borehole water to the local community. While some residents benefit from stronger bones, others report skin dryness and irritation. What practical action should the health officers take?  (1 mark)

A rural dispensary provides untreated borehole water to the local community. While some residents benefit from stronger bones, others report skin dryness and irritation. What practical action should the health officers take?  (1 mark)

A boarding school matron notices that despite using enough detergent, the clothes appear grey and feel rough. What is the most likely cause?

A boarding school matron notices that despite using enough detergent, the clothes appear grey and feel rough. What is the most likely cause?  (1 mark)

A boarding school matron notices that despite using enough detergent, the clothes appear grey and feel rough. What is the most likely cause?  (1 mark)

A boarding school matron notices that despite using enough detergent, the clothes appear grey and feel rough. What is the most likely cause?  (1 mark)

A rural clinic notices that their electric sterilizer is taking longer to heat and leaving chalky residue on tools. What is the most effective response?

A rural clinic notices that their electric sterilizer is taking longer to heat and leaving chalky residue on tools. What is the most effective response?  (1 mark)

A rural clinic notices that their electric sterilizer is taking longer to heat and leaving chalky residue on tools. What is the most effective response?  (1 mark)

A rural clinic notices that their electric sterilizer is taking longer to heat and leaving chalky residue on tools. What is the most effective response?  (1 mark)