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Card 6
Front
Why is scale bad?
Back
Card 7
Front
What are the advantages of hard water?
Back
Card 8
Front
What is water called when its hardness can be rfemoved by boiling?
Back
Card 9
Front
What ions does temporary hard water contain?
Back
Card 10
Front
What does the hydrogen carbonate ions decompose to form when heated?
Back
Card 11
Front
What us permanent hard water?
Back
Card 12
Front
What ions permanent hard water contain other than calcium +magnesium?
Back
Card 13
Front
What are teo methods of softening hard water?
Back
Card 14
Front
What is the equation for adding sodium carbonate to hard water?
Back
Card 15
Front
What does an ion exchaneg column contain?
Back
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