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Card 6

Front

Permanent hard water

Back

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Card 7

Front

Temporary hard water

Back

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Card 8

Front

Method to distinguish between permanent and temporary hard water

Back

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Card 9

Front

Method to measure hardness of water by titration

Back

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Card 10

Front

Why is temporary hard water temporary?

Back

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Card 11

Front

Why is permanent hard water permanent?

Back

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Card 12

Front

Why can hard water increase costs?

Back

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Card 13

Front

Benefits of hard water

Back

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Card 14

Front

How hard water can be made soft using sodium carbonate

Back

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Card 15

Front

How hard water can be made soft using commerical water softeners such as ion exchange columns

Back

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