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Card 26

Front

What are the five stages of water treatment?

Back

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Card 27

Front

What is the difference between soft and hard water?

Back

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Card 28

Front

How is water hardness caused?

Back

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Card 29

Front

How do you remove water hardness?

Back

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Card 30

Front

What is electrolysis?

Back

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Card 31

Front

What is an alloy?

Back

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Card 32

Front

What is an activity series?

Back

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Card 33

Front

What are the properties of metal?

Back

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