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Chemistry, 31.12.2019 22:31 jsph5332

Fresh water is treated to make it safe to drink. soluble and insoluble
substances are removed during this treatment, and chlorine is added
to kill harmful microorganisms. state two reasons why samples of the
treated water are tested regularly.

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Fresh water is treated to make it safe to drink. soluble and insoluble
substances are removed d...
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