Chemistry · Oct / Nov 2020 · Paper 22 · Question 4
5070
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The question as text
Water from natural sources contains dissolved substances which are not pollutants, such as mineral salts.
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Show the answer and mark scheme
4(a)[1]
4(b)[1]
4(c)(i)[1]
4(c)(ii)[1]
4(d)[3]
4(e)(i)[1]
4(e)(ii)[2]
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