A Level CHEMISTRY 9701/12/F/M/16 Q18

Question

River water in a chalky agricultural area contains Ca2+, Mg2+, CO32–, HCO3–, Cl − and NO3– ions. In a water treatment plant, such water is treated by adding a calculated quantity of calcium hydroxide.

What will be precipitated from the river water following the addition of calcium hydroxide?

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    2021-03-20T15:50:19+08:00

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