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This question is about water and air. Describe how to test whether a sample of water is pure using melting point. . .

Chemistry
IGCSE&ALevel
CAIE
Exam No：0620_s25_qp_32 Year：2025 Question No：8(b)

Answer:



Knowledge points:

10.1.1. Describe chemical tests for the presence of water using anhydrous cobalt(II) chloride and anhydrous copper(II) sulfate

Solution:

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