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Card 16
Front
Where do pollutants like lead come from?
Back
Card 17
Front
Where do pollutants like pesticides come from?
Back
Card 18
Front
Name the three main processes involved in water purification:
Back
Card 19
Front
Explain the three main processes involved in water purification:
Back
Card 20
Front
Explain the drawback of distilling sea water in large amounts
Back
Card 21
Front
Why are some soluble substances are not removed during the purification process?
Back
Card 22
Front
What substances may water contain before it is purified?
Back
Card 23
Front
What is Barium chloride solution used for?
Back
Card 24
Front
What is Silver nitrate solution used for?
Back
Card 25
Front
What are the colours when testing for halide ions?
Back
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