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Card 6

Front

What causes hard water?

Back

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Card 7

Front

Name the two types of hardness

Back

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Card 8

Front

What are the benefits of hard water?

Back

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Card 9

Front

What is temporary hardness caused by?

Back

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Card 10

Front

What is permanent hardness caused by?

Back

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Card 11

Front

How do you remove temporary hardness?

Back

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Card 12

Front

Why can't you get rid of permanent hardness by boiling?

Back

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Card 13

Front

How can adding sodium carbonate remove both types of hardness?

Back

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Card 14

Front

How can an ion exchange column remove both types of hardness?

Back

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Card 15

Front

What is the equation for an ion exchange column with sodium ions?

Back

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