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Card 6
Front
Explain why kettle heating elements with a build up of scale are not very efficient
Back
Card 7
Front
What charges are present on the Calcium and Magnesium Ions
Back
Card 8
Front
Watch a video on rain falling onto limestone, chalk... and how this makes the water hard
Back
Card 9
Front
Give two advantages of hard water for your health
Back
Card 10
Front
In simple mans terms, how do we make hard water soft?
Back
Card 11
Front
State the two types of hardness
Back
Card 12
Front
What is temporary hardness caused by?
Back
Card 13
Front
What is permenant hardness caused by?
Back
Card 14
Front
By which process can temporary hardness be removed?
Back
Card 15
Front
What happens to the calcium hydrocarbonate in temporary hard water when we boil it?
Back
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